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White Water Creek Bridge Relocation i5i;~~E ~ck~ MEMORANDUM October 27,2005 TO: The Honorable Mayor and City Council Members FROM: Michael C. Van Milligen, City Manager SUBJECT: Consultant Recommendation for White Water Creek Bridge Relocation The State Historic Preservation Office has awarded a $30,000 grant to the City of Dubuque for relocation of the historic White Water Creek Bridge to a planned bike/hike trail in the Bergfeld Recreation Area in Dubuque Industrial Center West. The City's $20,000 local match has been budgeted. Five proposals were received in response to a Request for Proposals distributed for a consulting engineer to conduct a structural analysis of the bridge, to develop specifications for moving the bridge to Dubuque, and to prepare construction plans for the new bridge abutments in the Bergfeld Recreation Area. Planning Services Manager Laura Carstens recommends City Council approval of the selection of NNW, Inc. as the consultant for this project, and recommends that City staff be authorized to negotiate a contract with NNW, Inc. for a fee not to exceed $20,000. If staff is unable to negotiate a contract with NNW, Inc., it is recommended that the City Council authorize City staff to negotiate a contract with Graef, Anhalt, Schloemer for a fee not to exceed $19,740. I concur with the recommendation and respectfully request Mayor and City Council approval. (l1w{ l4;rJL Michael C. Van Milligen MCVM/jh Attachment cc: Barry Lindahl, Corporation Counsel Cindy Steinhauser, Assistant City Manager Laura Carstens, Planning Services Manager f"'-'" (.' DU~~E ~<k~ MEMORANDUM October 26, 2005 TO: FROM: Michael Van Milligen, City Manager Laura Carstens, Planning Services Manager ~ SUBJECT: Consultant Recommendation for White Water Creek Bridge Relocation Introduction This memorandum transmits the consultant recommendation for Professional Design Services for the Historic White Water Creek Bridge Relocation Project, for review and approval by the City Council. Information on the project and the proposal submitted by the selected firm are enclosed. Background The historic White Water Creek Bridge was constructed in 1872 as part of an approach span for a bridge over the Mississippi River. It later relocated to White Water Creek, 15 miles southwest of Dubuque near Cascade. In the 1990's Dubuque County determined the bridge was no longer able to handle vehicular traffic, and had to be replaced. The City of Dubuque agreed to accept ownership of the bridge from Dubuque County, and to preserve it through reuse on a bikelhike trail in the city. In 1998, the City of Dubuque signed a Memorandum of Agreement with the Federal Highway Administration, State Historic Preservation Office, and Dubuque County for relocation of the historic White Water Creek Bridge to a City recreational trail. Project Description The State Historic Preservation Office has awarded a $30,000 grant to the City for relocation of the historic White Water Creek Bridge from the Cascade area to a planned bikelhike trail in the Bergfeld Recreation Area in Dubuque Industrial Center West. The City has budgeted $20,000 from the Bridge Maintenance Fund as the local match for the estimated project budget of $50,000. The bridge will be located on the overflow spillway for the detention pond in the Recreation Area. The historic bridge will be incorporated into a new trail that is under construction in the Bergfeld Recreation Area. A map is enclosed. .. ,. .. .. .. .- ,. - ~ .. ~ . ... ~ ~ - .. := ~ ~ t! .. .. ~ ... .. , (4 , ,. , ,. ~ !4 .. .. .. 14 .. .. .. .. .. ,.. .. . .. . Historic Vlhite water creel<. Bridge ~ Engineering ServO Ices P September 2005 raposal For D'"'~~ UBui'jUE: ........""s...~, cl -r'~ . ~ t\P'" Ill'- !Ie :'F.)< :.>"., - :.. A. FIRM BACKGROUND ",a __ was founded in 1975. This consulting firm has served the Midwest area with high quality !!!e professional engineering for projects ranging from several thousand to multi-million dollars in scope. " ;: __ seeks projects which are "principal intensive". These projects require the hands-on ;.' conceptual skills of the firm principal rather than great amounts of technical support staff. NNW was ~ founded on the firm belief of providing high quality engineering services at reasonable cost. While many =-..' firms have one-half to one-third of their staff comprised of sub-professional, technical or support staff, ~= NNW's personnel consists of staff engineers. Trained, experienced engineers have the benefit of time, ~ practice and understanding on their side; efficient use of time and .resources comes naturally due to their ...., famlllanty With the Industry and Industry practices, which translates Into overall cost savings. r . ~ seeks projects in Iowa, Western Illinois and Minnesota. This provides for more familiarity ~. with topographic conditions, and the capabilities of the business community. . It also provides for more , efficient operations through minimizing non-productive overhead. FIRM PROFILE A review of recent work accomplishments is ample evidence of the Firm's ability to produce quality custom engineering work of substantial size within reasonable time frames and construction budgets. ~ maintains sophisticated computer resources for its projects such as AutoCAD for production drawings and ST AAD for structural analysis and design. Preliminary designs can be quickly visualized and analyzed to provide optimized designs. Design documents developed by CAD assure clear and precise drawings that allow fast modifications. This translates into savings for the client through reduced document production time and shorter lead times for revisions throughout the project. Drawing and data files can be transmitted between NNW and the client via high-speed DSL line or using File Transfer Protocol (FTP). ~ carries professional liability insurance, general business liability insurance, and worker compensation insurance. . . Pre-Design Planning Design Services Post-Design Services Inspection Feasibility Studies Location Studies Concept Development Bridge Hydraulics Schematic Design Cost Estimates Structural Design Bridge Design Civil Site Desig n Specifications Plan Issue Bid Assistance Construction Management Coordination Construction Inspection Submittal Review Materials Testing Bridges Bridge Sounding Crane Systems Buildings Our professional affiliations include: . American Society of Civil Engineers . American Concrete institute . American Institute of Steel Construction . . Structural Engineers Association of Iowa . Iowa Engineering Society . NSPE Historic White Water Creek Bridge Relocation, City of Dubuque . ,. .. ,. .. .. .. .- .. .. .. ,. .. .. .. .. .- .. ,. ,. ~ .. .. ~ .. I' & ~ B. PROJECT TEAM AND SUB-CONSULTANTS ON PROJECT Office Location Main office: Branch Office: NNW, Inc. Consulting Engineers 506 E. College Street Iowa City, IA 52240-5114 (319) 351-2166 NNW, Inc. Consulting Engineers 318 Broadway Avenue South Rochester, MN 55904 (507) 281-5188 Key Staff Involved In Project Principal In Charqe Proiect Enqineer Steve Jacobsen, PE Mark Holtkamp, PE Other Staff Available to Assist Jane Driscoll, PE Bachelors of Science in Civil Engineering 9 yrs of consulting engineering experience. Rosanne Edwards, PE Masters of Science in Civil Engineering Over 28 yrs of experience in structural engineering. Office Location Where Majority Of Work Will Take Place Main office: NNW, Inc. Consulting Engineers 506 E. College Street Iowa City, IA 52240-5114 (319) 351-2166 Historic White Water Creek Bridge Relocation, City of Dubuque 2 . .. lI\t ,,",c. QUALIFICATIONS - PROJECT MANAGER AND TEAM . Education: . . Master's .of Scie~ce i~ Structural Engineenng, University of Iowa . . Bachelor of Science in Civil Engineering, University of Iowa .. Award Winning Bridges Include: . . Iowa Interstate RR Bridge Ollef First Avenue, Coralville, Iowa o 2004 ACEC Grand Caneeptar Award for Engineering Excellence o 2003 Outstanding Civil Engineering Project Achievement Summit Street Bridge, Iowa City, IA o 1999/owa Quality Initiative Award o Best Steel Beam Bridge In Iowa o 2000 Iowa Ready Mix Association o Excellence in Concrete Award Woolf Avenue Bridge o 2000 American Concrete Institute lowa- Minnesota Chapter Concrete Bridge Award o American Society Of Civil Engineers Iowa Chapter Project Of The Year 1999 o Consulting Engineers Council Of Iowa Grand Conceptor A ward o 199B Iowa Quality Initiative Award- Best Slab Bridge In Iowa Melrose Avenue Bridge over the Iowa Interstate R.R. o 1997 Iowa Quality Initiative Award for Best Steel Beam Bridge in Iowa West Burlington Avenue Bridge, Burlington, IA o 1996 Iowa Quality Initiative Structures Award o 1996 Consulting Engineers Council of Iowa Honor Award STEVEN K. JACOBSEN, P.E. PRESIDENT, NNW, INC. Mr. Jacobsen serves as the Firm's principal engineer for structural and civil engineering projects. He has over 23 years of experience that includes bridge design. general building design and numerous retrofit projects. He has been involved in the design and project planning of a wide variety of major bridge projects. Steve has a Masters Degree in Structural Engineering. which included a concentration of study in steel fatigue. Steve continues to improve and expand his expertise in bridge design by being involved in research projects, which have resuited in several papers being published. Additionally. Steve currentiy serves as a visiting lecturer at the University of Iowa teaching the course Civil and Environmental Engineering, Structural Design I, (Reinforced Concrete Design). Previously Steve taught Project Management and Bridge Design in Transportation System Design. Steve is President and majority owner of NNW, Inc., a firm specializing in structural design and renovation of bridges. Steve has been the iead design engineer on many bridge rehabilitation and replacement projects. On a Project Engineering level. Steve will be overseeing the project from start to finish. His technical design ability and management experience are invaluable to the success of this project. Professional Affiliations American Institute of Steel Construction American Society of Civil Engineers American Concrete Institute Structural Engineers Association of IA . . . . Publications Low Profile Railroad Bridoe. 6th International Conference for Railway Engineering, Sponsored by the Railway Gazette, London, England, April 2003 Develooment of New Modular Steel Bridoe Desion. US-Korea Conference on Science, Technology, and Entrepreneurship, Korean-American Scientists and Engineers Association, Seoul, Korea, July 2002 Structural Feasibilitv of Seamen tal Steel Box Girder Bridoe. First International Conference on Bridge Maintenance, Safety and Management, International Association for Bridge Maintenance and Safety, Barcelona. Spain, July 2002 Generation of Influence Surfaces for Two-Wav Slab Bridoes. Mid-Continent Transportation Symposium, Center for Transportation Research Education, Ames, Iowa, May 2000 Mark A. Holtkamp, PE PROJECT ENGINEER, NNW, INC. Mark A. Holtkamp. Project Engineer for NNW, inc. is part of the team responsible for numerous bridge projects from inception to preparation of final drawings and construction supervision. Mark is also the lead bridge inspector for NNW. Mark performs bridge inspections for many cities, counties and municipalities that report the condition of their structures to the Iowa Department of Transportation. Currentiy, Mark is working on relocating a bridge for Jones County and The Iowa Department of Transportation. Planning and coordinating for the Historic Hale Bridge relocation has been a process that also involves the Army Corp of Engineers who is in charge of flying the bridge to its new location in Jones County. Mark will assist the principal engineer with the relocation of the White Water Creek Bridge relocation. His experience relocating, designing and inspecting bridges, and working in high-traffic areas make him a valuable addition to this project. Historic White Water Creek Bridge Reiocation, City of Dubuque .. e e e' . . . . . . . . . . e' . . . . . . . · QUALIFICATIONS - PROJECT TEAM MEMBER . Education: . . BSCE, University of Iowa . Award Winning Bridges Include: . . Iowa Interstate RR Bridge over First Avenue, Coralville, Iowa . 0 2004 ACEC Grand Caneeptar Award for Engineering Excellence . 0 2003 Outstanding Civil Engineering . Project Achievement . Summit Street Bridge, Iowa City, lA . 0 1999 Iowa Quality Initiative Award - 0 Best Steel Beam Bridge In Iowa . 0 2000 Iowa Ready Mix Association o Excellence in Concrete Award . . .~ " 3 ,. .. . .. D. EXPERIENCE WITH SIMILAR TYPE OF WORK INCLUDING CLIENT REFERENCES _. >r..._...."'~.."',.~;;:i'5I1i1f~"i'!'o;;;;;"""'1ii7$2P"~"t'r'. .. .., ~~'Jf~:h,/.,~r.:e~",-w"~~.ifk-i"}~, tj", .. Hal~ Bridge ... Jones County, Iowa .. 1877-1879 ,. Manufactured by .. King Iron Bridge and ;...., Manufacturing Co., I- Cleveland, OH = Three spans, 81', 82' . and 100'. r- III ~ ~ t: ~ ,. .. a. ,. fie .. .- ,. ,. C ~ ~ NNW was hired by the Jones County Historic Preservation Committee to develop a preliminary cost estimate, prepare plans, perform hydraulic calculations and obtain permits for relocation of the Hale Bridge to a location of the Wapsipinicon River at Wapsipinicon State Park near Anamosa. NNW was responsible for preparing restoration plans for the bridge and designing the bridge abutments, piers and approaches to enable its use for pedestrian traffic. The restoration plans included: keeping the three (3) spans in the final location, ensuring the bridge would be kept historically correct, and maintaining eligibility for the National Register of Historic Places. Plans were also developed to stabilize and reinforce the bridge for transport by air to its permanent location. Since the bridge is wrought iron and not steel, the repair plans called for welding techniques requiring special care to prevent damage to the structure. Additionally, NNW itemized restoration plan components to enable in/kind donations from interested parties in the restoration process. Currently in progress, NNW will supervise the completion of restoration and the construction of abutments, certify restoration according to specifications established in the restoration plan, ensure compliance with all regulations dealing with lead paint issues associated with the project, and ensure compliance with all rules, regulation and requirements associated with Department of Transportation Federal Aid Projects. NNW was responsible for securing all permits required from regulatory agencies associated with the project The Hale Bridge Project, in many respects is similar to the Historic White Water Creek Bridge Relocation project. Many of the engineering services provided for the Hale Bridge will need to be provided on the White Water Creek Bridge. Also, the White Water Creek bridge is wrought iron and special care needs to be given to the transportation and repair of such structures. REFERENCES Rose Rohr Jones County 818 Richview Rd Monticello, IA 52310 (319) 480-0221 Nancy Anania Iowa Dept of Transportation 800 Lincoln Way Ames, IA 50010 (515) 239-1621 John Austin Dept of Natural Resources Facilities Engineer Wallace Street Office Bldng 502 E. 9th Street Des Moines, IA 50319-0034 (515) 250-3719 Historic White Water Creek Bridge Relocation, City of Dubuque 4 - ,. ,. .. "'_ Kiwanis Park Bridge ;_ Johnson County .. 1904 ~4.. Originally- 16' wide p ~ . E rr t; E ~ ~ E ~ r- Kent Park Bridge M Johnson County Ie I! When the City of Iowa City desired to use an existing pony truss bridge as a pedestrian Bridge at Willow Creek Park, NNW was hired to facilitate the move. NNW prepared detail plans, specifications, contract documents and engineer's estimate required for City of Iowa City letting. The Contract documents had to comply with City, State and Federal requirements and use Iowa City Standard Specifications as base specifications. NNW also provided necessary prints and calculations for review by City, State and Federal agencies. The "new" bridge across Willow Creek is a second life for a bridge that has already served the County for nearly a century. For 90 years, the bridge carried a gravel road now known as S.W. Lackender Avenue over Picayune Creek. This is located just south and east of Sharon Center in southern Johnson County. This type of bridge, a steel pony truss consisting of channel and plate compression members and eyebar tension members, was common in the early 1900's. The truss is an emblem of the time it was built, using minimal material, which was expensive, and a great deal of labor, which was relatively inexpensive. . The bridge was removed from that site in 1994 and was moved to its new location in 1998. It was reduced from its original 16' width and placed on new abutments. It is interesting to ponder the vehicles that have passed over this bridge. When it was built horses ruled the day, soon giving way to horseless carriages. Over this bridge farmers traveled to and from their fields, carrying thousands of bushels of grain to market. Later in life, the bridge got tired as the loads got bigger and bigger. Finally, signs were erected to limit the loads that could be taken across the bridge. But now the bridge has a new life. It will carry children to school, strollers through the park and bicyclists on their merry way. I think this bridge will enjoy its second life. REFERENCES Johnson County Secondary Roads 4810 Melrose Avenue Iowa City, IA 52246 The Johnson County Conservation board hired NNW to determine the feasibility of reusing an historic bridge in a Kent Park hiking trail. The purpose was to use the structure to provide for the trail around the lake and crossing of some of the inlets. Our firm studied the possibility of using the reclaimed bridge trusses and roof support trusses and what type of foundation this would require. NNW also provided engineering services associated with dredging and disposal of 62,000 c.y. of lake silt at Kent Park. REFERENCES Johnson County Secondary Roads 4810 Melrose Avenue Iowa City, IA 52246 Historic White Water Creek Bridge Relocation, City of Dubuque 5 . . . Sand Road Bridge . Johnson County . . . 1'1 ; P y Camp Road, Des '" Moines County ~ p ~ City of Davenport .: For many years, NNW Jill has provided bridge . inspection services for '- the City of Davenport's !""" 39 bridges. REFERENCES Glen Wazny, PE City of Davenport 1200 E. 46'h Street Davenport, IA 52807 (563) 326-7711 Johnson County hired NNW to do a foundation design for a new bridge on a precast superstructure. The bridge on Sand Road crosses over a tributary to the Iowa River. NNW performed design calculations for the new 70' x 40' prestressed concrete inverted T bridge, with three spans. We also prepared detailed plans, specifications and contract documents required for an Iowa Department of Transportation formal letting. REFERENCES Allan Millers Johnson County Secondary Roads 4810 Melrose Avenue Iowa City, IA 52246 The existing county bridges were replaced with single span 32'-0 wide precast concrete beam bridges. Both bridges are supported by pile bents and feature 27" deep x 48" wide precast concrete deck beams with y," diameter strands prestressed to 28,900 Ibs. V-camp Road Bridge spans 65'-0 and Walker Road Bridge spans 58'-0 with a 30 degree right-ahead skew. The deck beams were over-Iayed with a three inch bituminus concrete surfacing. The project included stream bed realignment and channel sloping. REFERENCES Des Moines County 13522 Washington Road West Burlington, IA 52655 This project provided a new pedestrian bridge over a small tributary creek to Clear Creek in Johnson County associated with the Tiffin Trail Project. Clear Creek can rise and fall quickly during significant rainfall events. The project involved hydraulic analysis, designing new reinforced concrete abutments, and installing a pre-engineered pedestrian truss bridge. The 60'-0 long bridge spans over a creek with a 1.2 square mile drainage area. The project also required obtaining Iowa Department of Transportation, Iowa Department of Natural Resources and Army Corp of Engineers permits for work in a floodplain and tributary waterways. The purpose of this project was to provide a safe pedestrian crossing of this scenic creek. REFERENCES Hart Frederick Consultants 510 E. State St; PO Box 560 Tiffin, IA 5340 City of Bettendorf For many years, NNW has provided bridge inspection services for the City of Bettendorf's 20 bridges. Scott County For many years, NNW has provided bridge inspection services for Scott County's 121 bridges. REFERENCES Sharon Smusal City of Bettendorf 1609 State Street Bettendorf, IA 52722 (563) 344-4055 REFERENCES Jon R. Burgstrum, PE Scott County 518 W. 4'h Street Davenport, IA 52801 (563) 326-8640 Johnson County For many years, NNW has provided bridge inspection services for Johnson County's 213 bridges. Additionally, NNW has performed more in-depth inspections of some of Johnson County's bridges using special equipment to access difficult areas. We have used a "Snooper Truck" to inspect the cover plates of the bridge's steel stringers and sound the underside of the bridge deck. REFERENCES Greg Parker, PE Johnson County Secondary Roads 4810 Melrose Avenue Iowa City, IA 52245 (319) 356-6046 Historic White Water Creek Bridge Relocation, City of Dubuque 6 ~ , ~F.!CI<I"~""IilAa!tl""""''''''''' < ' cl~wa" , I~;~~'"'" ,,,~~""IH'~ c_ , Railroad Bridge over , First Avenue , . , , . , , , , , . . . . . . . 2004 ACEC Engineering Excellence Grand Conceptor A ward 2003 Iowa American Society of Civil Engineers Outstanding Civil Engineering Project of the Year · Summit Street Bridge . Iowa City, Iowa . New 165' long, 43' . wide, three span steel frame bridge over . railroad, . . 2000 Iowa Quality . Initiative award for best steel beam . bridge in the state of Iowa, . . 1999 Iowa Quality . Initiative Award Best Steel Beam Bridge In . Iowa . . . . . . .. .rmR ~",,'_'<;{;;i~"~~,~;::S.~~:.;:;~ ....~.' '>:~~:. ,,:'" , ". :;';: ',~Ei}Si;;:r~?.iBlT~ .~-' .'>".,' '.~:: The City of Coralville, The Iowa Department of Transportation, Iowa City, the University of Iowa and the Iowa Interstate Railroad partnered to replace the old railroad viaduct with a new rail bridge that greatly improves the efficiency and safety of train traffic over 1 st Avenue, and automobile and pedestrian traffic on 1st Avenue, In addition to increasing traffic efficiency and safety, the new bridge will also add architectural interest to the area. The new 100-foot span railroad bridge Is lighted, the concrete columns veneered with Iowa Limestone, and the terraced grounds around the bridge landscaped with flowering plants and grasses. This unique design of this bridge includes a composite ,multi-cell steel box girder. The exterior webs are taller than the interior webs and the "folded" concrete deck forms the trough for the railroad ballast and rails REFERENCES Dan Holderness, PE City of Coralville 1512 7th Avenue; PO Box 5127 Coralville, IA 52241 (319) 248-1720 i I Its love of the arts and its appreciation and preservation of the "old" make the Summit street neighborhood very unique, Adding to its intrigue and charm is the Summit Street Gallery half a block away. u: . " This bridge is an inclined leg steel frame, which allowed for a thinner structure thus reducing the impact on the approach roadways. The frame was made up of rolled steel beams, which reduced steel fabrication labor cost In the center of the bridge are "bump-outs" and in the sidewalk benches for people to watch the train switch yard nearby, a design idea that was born of the residents themselves, The finished product was the design of new 165-foot long, 43-foot wide, three-span steel frame bridge. Project included 987 feet of urban approach roadway with storm sewer and utility relocation. REFERENCES Denny Gannon, PE, City of Iowa City, 410 E. Washington Street, Iowa City, IA 52240, (319) 356-5142 , , , Avenue 'Woolf . Bridge . Replacement of 4 . span 48'x205' concrete . slab bridge. >> >> >> . . . t t t t t t . . . 2001 American Concrete Institute, lowa- Minnesota Chapter Concrete Bridge Award This project was named ASCE Iowa Project of the Year for 1999. Consulting Engineers Council Of Iowa Grand Conceptor Award 1999 Iowa Quality Initiative Award For Best Slab Bridge In Iowa . Melrose Avenue . over the Iowa Interstate Railroad . in Iowa City. . Replacement of . 63'x210' . steel stringer bridge . with 45' skew. . . Other Info 13,000 vpd in . addition to the . football traffic . This corridor is .. heavily traveled by ,. pedestrians, bicycles . and busses. ;. ~ 1997 Iowa Quality Initiative award for best steel beam bridge in the state of Iowa. Woolf Avenue is grade-separated from U.S. Highway 6 and the CRANDIC Railroad. U.S. Highway 6 is the main arterial between Coralville and Iowa City and carries 20,000 vehicles-per-day. The existing Woolf Avenue bridge had deteriorated to the point that it was posted for loads due to used up fatigue life and concrete was falling onto the highway. The City of Iowa City desired a bridge that would improve the appearance of this gateway to the city and increase the 14.5-foot vertical clearance over Highway 6. The vertical clearance issue had resulted in twice closing the bridge for expensive repairs. Driveways and a retaining wall near the bridge fixed the existing Woolf Avenue grade. In addition, clear zone restrictions on Highway 6 affected span length as well. In order to incorporate the desired 16.5-foot vertical clearance, a thin structure was required. With restrictions, a 71-foot span was required; however, the span was reduced to 63 feet by tipping the piers inward. The piers have the effect of creating a colonnade as one passes under the bridge. A 28-inch slab was used. A voided slab was utilized to reduce dead load. The design also called for an impression of the Iowa City logo on four concrete end posts and the words lOW A CITY on each side of the slab. Coordinating all the entities made this project very complex. An 8-inch diameter water main was installed in one of the slab voids. Maintaining traffic on Highway 6 made falsework installation difficult. The designers worked closely with the press and local businesses to inform the pubiic of closures on Highway 6 and subsequent detours. REFERENCES Rick Fosse, PE City of Iowa City 410 E. Washington Street Iowa City, IA 52240 (319) 356-5100 This bridge is located adjacent to Kinnick Stadium on the University of Iowa Campus. Since the project took a year to complete the football season could not be avoided. Our study of alternative detouring determined that the most efficient alternative was to stage construction of the bridge. Construction staging as well as elaborate traffic control was required for the 13,000 vpd in addition to the football traffic. Since it also adjacent to the University medical complex, the corridor is heavily traveled by pedestrians, bicycles and busses. One end of the bridge is in University Heights, so the project required coordination of two Cities, multiple departments of the University and a strong Neighborhood Association, each with a different agenda. The project required many public hearings and information meetings most of which NNW, Inc. organized and conducted. The design included provisions for trunk telephone line, including fiber optic, supported on the bridge without disruption of service. An 8" watermain and 6" high pressure gas main were also attached to the bridge. v. . " REFERENCES Rick Fosse, PE City of iowa City 410 E. Washington Street Iowa City, IA 52240 (319) 356-5100 Historic White Water Creek Bridge Relocation, City of Dubuque 8 Oakdale Blvd Bridge, City of Coralville, Iowa 1997 Iowa Quality Initiative Award For Best Concrete Slab Bridge in Iowa I I I . . . . . . . West Burlington . Avenue Bridge over . Burlington Northern Railroad . . 3-span, 225' long by 38' wide, steel frame . bridge. . . . . . t t . t [IDl!1J 1996 Iowa Quality Initiative Structures Award 1996 Consulting Engineers Council of Iowa Honor Award This bridge is located In an area of very hard limestone. When the design of the bridge was being considered and upon site exploration we found that this site rock is located near the surface with soft overbearing material. We looked at three different types of foundations: pile bents, spread footings and drilled shafts. .T.... :' j' Ii',: I; If II I~ , II i Ii" ! 1-1. , I;" " I; , ~ ~J Our experience with hard rock with a bridge over the Iowa River less than a mile away had increased our understanding of possible impending challenges designing the foundation for this project. The bridge over the Iowa River has spread footings on rock and due to the hardness of the rock cofferdam construction was very difficult. Steel sheeting could not be driven into the rock, which created a problem anchoring the cofferdam. This incident caused skepticism whether piling could be driven into the rock enough to get sufficient toehold. Further research also indicated that setting the piles in concrete-filled holes in the limestone was not cost effective. Cost ruled out the option of using pile bents and spread footings as foundation design possibilities. The only other option left was drilled shafts with rock sockets. The 12,000psi+ compression tests of the rock indicated high bearing capacity for the shafts and since the cost and design challenges were reduced, this was the option of choice. The design of choice produced a 4-span concrete slab bridge, 225 feet long founded on drilled shafts and skewed 45 degrees. The Muddy Creek Bridge is a vehicular bridge that accomodates both at-grade and underpass pedestrian trail traffic. The bridge is a standard, concrete post and beam bridge with aesthetically enhanced barriers, pedestrian railings and lighting. The construction cost of this bridge wa $9,400,000 with aesthetic improvements costing $500,000. "Jl 'j := "'l REFERENCES Rick Fosse, PE City of Iowa City 410 E. Washington Street Iowa City, IA 52240 (319) 356-5100 tn~ wi ~; ! This 3 span steel frame bridge crosses the busy Burlington Northern Santa Fe Railroad. The piers are framed steel columns that are set back from the railroad far enough to not require crash walls. The framed legs helped reduce the depth of the superstructure thus reducing the approach slopes to the bridge. The bridge is 38 feet wide and has one sidewalk. It is 225 feet long. REFERENCES Historic White Water Creek Bridge Relocation, City of Dubuque 9 II , , , 'd . Butler Bn ge ,. Johnson County , , 5-span, 446' long by 40' wide, prestressed ~ concrete beam ~ bridge. ~ 446'-0" length . 75'-0", 95'-0", 95'-0", ~ 95'-0", 75'-0" spans ~ . . . . t I I I I I Benton Street I Bridge over the . Iowa River ) Widening and , Rehabilitation of I 70'x480' steel plate girder bridge. I . _.....LA:f1l."':.~.~~""'y~,:''"''',:'f:.~:;;:',-,.' ,'t.."- "'<,'.:;t,,.. , ~.'.' . ,.~- , >..,~". ~.,. .. .- _.. , This five span prestressed concrete beam bridge spans the Iowa River. It has 2 end spans of 85 feet and 3 middle spans of 95'. The piers are modified T piers, two of which are on piling and two on spread footings on rock. The abutments are standard stub abutments. The bridge is 40 feet wide and 465 feet long. . REFERENCES Alan Miller, PE Johnson County Secondary Roads 4810 Melrose Avenue Iowa City, IA 52245 (319) 356-6046 The old two-lane bridge was . built in1949 and was billed in a Lincoln Electric Publication as the first "ail welded" plate girder bridge west of the Mississippi. The superstructure was loaded with E' welds on the main girders. Needless to say, the steel could not be incorporated into the widened structure. However, the existing piers and abutments were used to support half of the bridge. The widening was accomplished by staging the construction and keeping the bridge open to traffic. u 0; " REFERENCES Alan Miller, PE Johnson County Secondary Roads 4810 Melrose Avenue Iowa City, IA 52245 (319) 356-6046 ,. "~!Il' ~ Iowa Avenue ~ . .', ~ Pedestrian Bridge, ~ Iowa City, Iowa ~ .., .- ~ ~ . L.-) 6th Street Bridge -r City of Iowa City ~ ... 5-span, prestressed .. concrete beam bridge .., on concrete frame .., piers with long pile j foundation over "., railroad. "., Flaired bridge. "., .,., .", " I This bridge carries 6 street over the busy BNSF Railroad and Valley Street in . downtown Burlington, The bridge is a 3-lane, 5-span prestressed concrete beam structure with variable width, It is a 376 feet long by 44 feet wide. It was built over a 100-year old stone arch storm sewer that required careful monitoring of foundation installation, REFERENCES Denny Gannon, PE City of Iowa City 410 E. Washington Street Iowa City, IA 52240 (319) 356-5142 joints. This 1962 bridge was built by the Iowa DOT to provide a safe crossing of U.S. Highway 6 for the heavy pedestrian traffic generated, primarily, by the University of Iowa. The bridge is a framed concrete girder with an integral deck. It consists of three independent structures separated by expansion The 10-foot bridge deck includes railings, an 8'-6 walkway and 3'-6 high aluminum railings. Over the last few years, the bridge began showing signs of distress such as concrete delamination and spalling, The City of Iowa City hired NNW to perform an analysis to explore the options available. The bridge deck was sounded and 3.5% of the slab surface area was found to be delaminated. The unsound concrete is currently being removed and patched. Since the structural integrity of the bridge is not compromised by the delamination or spalling, NNW recommended using the Electrochemical Chloride Extraction method to remove the high concentration of chloride and re-passivate the reinforcing steel. Upon completion of the ECE treatment, the bridge will be coated with an overlay applied to the deck and the overhead areas to inhibit future chloride infiltration, This project Is an ECE research project funded by the Iowa Transportation Research Board, REFERENCES Rick Fosse, PE City of Iowa City 410 E. Washington Street Iowa City, IA 52240 Historic White Water Creek Bridge Relocation, City of Dubuque 11 - ~ " E. ~ ,. , " , " " , , . . . . . . . . . . . .. . . . . . . . . . . . . . t It . , :rma ~~~,;;:~=.~::/';2:;;l::G2i:';':'::7;":~:'7~:::r.f '~":;~""'':'::::!r:~~ WORKLOAD AND COMMITMENT OF KEY STAFF Each year NNW is awarded one to two major structural projects. which are added to our workload. Currently, we are in the final design stages of two prestressed beam bridges for the City of Cedar Rapids. Also. we are wrapping up the Hale Bridge Relocation Project and will soon be done with a tunnel reconstruction project for the University of lowa- project to be let in January 2006. Since NNW is accustomed to working on several major structural projects per year, assisting the City with the engineering of the White Water Creek Relocation will not be a problem. We will have staff available to allocate resources to your project without sacrificing quality or deviating from the desired schedule. The personnel committed to completing this project were selected not only due to their expertise and experience. They were also selected based upon review of their workloads and their ability to fully commit the required resources to help the NNW team deliver a successful and affordable White Water Creek Relocation project. As you can see, currently NNW has three major projects that are in the final stages of design and will soon be completed. Therefore. you can be confident that the White Water Creek Bridge Relocation project will be given the priority it requires to be completed successfully and on time. SUMMARY OF MAJOR PROJECTS Hale Bridge Relocation Project, Jones County, Iowa - NNW has completed the design of the Hale Bridge restoration. The letting for this project is scheduled for November 15, 2005. Construction of the abutments will take place during the winter and will be compieted during the month of March. At that time, the Hale Bridge will be airlifted by the Army Corps of Engineers from its current storage location to the prepared site. NNW will be available to supervise the completion of restoration and the construction of abutments, certify restoration according to specifications established in the restoration plan, ensure compliance with all regulations dealing with lead paint issues associated with the project, and ensure compliance with all rules, regulation and requirements associated with Department of Transportation Federal Aid Projects. 33'" Avenue Over Crandic Railroad- In conjunction with Snyder and Associates, NNW is finishing up the Final Plans for the design of two prestressed beam bridges over the Crandic Railroad in Cedar Rapids, Iowa. This project is presently in its final stages and will be completed soon. This is our only bridge design work at this time. University of Iowa, Tunnel Reconstruction- The tunnel reconstruction includes removal and replacement of deteriorated and structurally deficient concrete, including the top, sides, and floor of the tunnel. Also included is replacement of deteriorated steel utility support members. Some tunnel portions will be removed and restored to facilitate construction. This project will be let January 2006. PROPOSED PROJECT APPROACH Moving a structure designed and constructed for a specific site and position creates many chaiienges. These chaiienges are greater when trying to relocate a structure that was constructed over a century ago. Materiais available, manufacturing techniques used and engineering expertise were different in the 191h century. However, the fact that this structure, the White Water Creek Bridge, has endured this length of time and survived much inclement weather is a testimony to the public as to its value and strength, and a tribute to its designers and fabricators. it is also compelling proof to its owners that this bridge is worth saving, restoring and revitalizing for a new purpose and a new site. As stated earlier, currently we are in the process of relocating an historic bridge that was designed and constructed around the same time as the White Water Creek Bridge. The Hale Bowstring Bridge was manufactured between 1877-1879 by the King Iron Bridge and Manufacturing Co. of Cleveland Ohio. It is comprised of three spans 81', 82' and 100'. The 81' and 82' spans weigh around 41,000 pounds each with deck in place; and the 100' span weighs about 55,000 pounds with the deck in place. As you can imagine, moving a structure of this size and of this weight is not easy. Furthermore, implementing the method necessary to preserve the structural integrity of the bridge while in motion is a task of great undertaking. When being removed from its original construction site to a staging site for repair, the Hale Bridge was moved using a truck with the truck body extended the fuii length of each span. However, soon to be moved to its permanent location, the Hale Bridge is going to be air lifted by the Army Corps of Engineers- a process that wiii pose its own unique chaiienges. With this current experience at hand, you can be assured that we wiii assist the City of Dubuque in successfuiiy moving the White Water Creek Bridge to its new location to serve its new purpose. As part of our consulting services, NNW wiii visit the current and the proposed bridge location to assess any possible problems. At this time we wiii gather survey information necessary to obtain floodplain permits required by the DNR and Corps of Engineers. NNW will perform a hydraulic analysis of the creek and submit aii forms required to obtain floodplain permits from the IDNR and the Corps of Engineers. This process usuaiiy takes a few months; therefore, this work should be done first to ensure the permits are in place prior to construction. We plan to analyze the bridge superstructure using STAAD software to determine the loads in each truss member. Once ~ the loads are established further structural .analyses will. be performed to ensure each member has sufficient capacity to withstand pedestnan loading and stresses Imposed dunng the move. .. After the current condition of the bridge has been analyzed and assessed, we wiii prepare preliminary plans and a cost ~... estimate for future rehabilitation that will offer alternatives for any repairs needed. These repair options wiii be discussed with the State Historic Preservation Office (SHPO) in Des Moines to ensure that neither the historical nor structural integrity of the bridge are compromised or altered. C One consideration that needs to be taken into account when repairing a bridge built in this time period, is the composition of fa the metal superstructure. NNW wiii establish what type of metal was used to fabricate the bridge and then determine what ~ method of repair is suitable. Most bridges built during this time period are made of wrought iron, which poses a chaiienge . when welding any additional members to it. Typical fillet welds cannot be used due to the fibrous nature of the wrought iron it therefore other methods will be explored. . NNW wiii prepare specifications needed to ensure safe transportation of the bridge to the new site. The specifications will Ii explain to the contractor requirements for successfuiiy moving the bridge without causing any damage. The new bridge abutments wiii be designed based on IDOT standards and modified as needed to fit the Historic White Water Creek Bridge. After the design is completed, NNW wiii produce an engineer's estimate that includes proposed cost and expense budgets as weii as provide aii plans and specifications needed to bid the project. NNW will help the client review the bids and advise on acceptance. After acceptance of a bid, we wiii conduct a pre- construction meeting to set the project on track. We wiii also foiiow-up with progress meetings to keep aii parties involved Updated on the progress, discuss any concerns that may surface and to ensure a timely project. During construction of the abutments and moving of the bridge, NNW wiii be available to provide assistance for construction inspection. .rmID . Historic White Water Creek Bridge Relocation, City of Dubuque 13 I I I . ~ It is the City's desire to coordinate the White Water Creek Bridge Relocation project with the Bergfeld Recreation Trail ~ currently under construction. Based on this information and conversations with your planning department, it is our . understanding that the City's proposed scheduie for this project is as follows: . Mid to Late October 2005 Contract Awarded to Engineering Consultant Early-Mid Winter 2005 Bid Letting . Late Winter 2005 Abutment Construction Begins . Spring 2006 Bridge Moving! Construction Compieted . Summer 2006 Bridge ready to be used by pedestrians at Bergfeld Recreation Area . In order to meet the City's desired schedule, provide the required engineering for relocating the bridge, apply for and obtain . necessary permits and successfully relocate the bridge, NNW proposes the following schedule: . October 24, 2005 Contract Awarded to Engineering Consultant . November 14, 2005 Submit Hydraulics to DNR and Corp of Engineers December 12, 2005 Preliminary plans ready for review for SHPO and City of Dubuque t January 16, 2006 Plans ready for bid distribution It The above dates are goals established by our engineers in order to meet your desired schedule. These dates may differ It slightly if governing agencies issuing permits face delays. Aiso, if the City awards the project sooner or later than It anticipated, this will cause the dates to fiuctuate. Awarding the project earlier in the month of October works in everyone's favor as the engineers can prepare submittals and receive permits sooner. It lit is NNW's desire to work with the City of Dubuque on this important project. You can be assured that with NNW you will receive quality engineering services that will translate into the successful and timely move of the Historic White Water Creek . Bridge. . . . . . II II ; PROPOSED PROJECT SCHEDULE { Historic White Water Creek Bridge Relocation, City of Dubuque 14 SCHEDULE OF RATES NNW, INC. ENGINEERING SERVICES Provided For CITY OF DUBUQUE PROFESSIONAL COMPENSATION The fee for professional services shall be a not-Io-exceed sum of $20,000 based upon the following hourly rates for services by principals, employees, and sub-consultants assigned to the project. Description Rate/Hour 1. LABOR Principal Structural Engineer $ 125.00 $ 110.00 $ 105.00 $ 95.00 $ 70.00 $ 65.00 at cost Structural Engineer (Grade 6) Structural Engineer (Grade 5) Technician Draftsperson Clerical Other Reimbursables ~ Historic White Water Creek Bridge Relocation, City of Dubuque 16 Cost Breakdown Engineering Service Cost Survey Hydrauiic Analysis $ 1,000 $ 2,000 $ 1,000 $ 3,000 $ 3,000 $ 2,000 $ 3,000 $ 2,000 Permit Application Process Superstructure Analysis Preliminary Plans and Cost For Future Rehab Specifications Abutment Design Engineer's Estimate, Proposed Cost and Expense Budgets, Plans and Specifications for Bidding Bid Tabulation and Meetings $ 1,000 $ 2,000 Travel and Expense Reimbursements tmml Historic White Water Creek Bridge Relocation, City of Dubuque 15