US Bridges

FM over S. Fork Long Creek

Good

Washington County, Iowa · 075061904 · Structure no. 000000000336221

Built
1992
33 years old
Condition
Good
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
141 ft
3 main spans
Daily traffic
590
2022 count
Owner
County
County Highway Agency

About this bridge

FM over S. Fork Long Creek is a prestressed concrete tee beam carrying FM over S. Fork Long Creek in Washington County, Iowa. It was built in 1992, so it is 33 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 590 vehicles a day, roughly 18% of them trucks, projected to reach 590 by 2043. The structure is 141 ft (43 m) long and 33 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

CarriesFM
CrossesS. Fork Long Creek
Location075061904
RouteCounty Highway 0
StateIowa
Coordinates41.28514, -91.60096
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length141 ft (43 m)
Longest span45 ft (13.7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2022)
Projected traffic590 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 FM over S. Fork Long Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is FM over S. Fork Long Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2023.

How much traffic does FM over S. Fork Long Creek carry?

About 590 vehicles per day (2022 count), of which roughly 18% are trucks.

How long is FM over S. Fork Long Creek?

The structure is 141 ft (43 m) long with a longest span of 45 ft (13.7 m) and a deck 33 ft wide.

Who owns FM over S. Fork Long Creek?

It is owned by the County Highway Agency.