US Bridges

Fairmount St. over Duck Creek

Fair

Scott County, Iowa · 000000000 · Structure no. 000000000503760

Built
1983
42 years old
Condition
Fair
inspected June 2023
Type
Slab
Concrete Continuous
Length
150 ft
4 main spans
Daily traffic
10,500
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Fairmount St. over Duck Creek is a concrete continuous slab carrying Fairmount St. over Duck Creek in Scott County, Iowa. It was built in 1983, so it is 42 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 10,500 vehicles a day, projected to reach 10,500 by 2043. The structure is 150 ft (45.7 m) long and 71 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFairmount St.
CrossesDuck Creek
Location000000000
RouteCity Street 0
CountyScott County
StateIowa
Coordinates41.55253, -90.62959
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating34.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length150 ft (45.7 m)
Longest span42 ft (12.8 m)
Deck width71 ft (21.7 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,500 (2022)
Projected traffic10,500 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fairmount St. over Duck Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is Fairmount St. over Duck Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Fairmount St. over Duck Creek carry?

About 10,500 vehicles per day (2022 count).

How long is Fairmount St. over Duck Creek?

The structure is 150 ft (45.7 m) long with a longest span of 42 ft (12.8 m) and a deck 71 ft wide.

Who owns Fairmount St. over Duck Creek?

It is owned by the City or Municipal Highway Agency.