US Bridges

FM over Davis Creek

Fair

Washington County, Iowa · 076070102 · Structure no. 000000000336930

Built
1953
72 years old, rebuilt 1997
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
58 ft
1 main span
Daily traffic
520
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Davis Creek is a steel stringer/multi-beam or girder carrying FM over Davis Creek in Washington County, Iowa. It was built in 1953 and reconstructed in 1997, so it is 72 years old, older 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 6 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 520 vehicles a day, roughly 10% of them trucks, projected to reach 520 by 2043. The structure is 58 ft (17.7 m) long and 32 ft wide. If it were closed, the detour would be 28 mi (45 km).

CarriesFM
CrossesDavis Creek
Location076070102
RouteCounty Highway 0
StateIowa
Coordinates41.41848, -91.61865
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating45.1 US tons
Inventory rating25.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length58 ft (17.7 m)
Longest span55 ft (16.8 m)
Deck width32 ft (9.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic520 (2022)
Projected traffic520 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed28 mi (45 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 Davis Creek built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1997.

What condition is FM over Davis 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 February 2023.

How much traffic does FM over Davis Creek carry?

About 520 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is FM over Davis Creek?

The structure is 58 ft (17.7 m) long with a longest span of 55 ft (16.8 m) and a deck 32 ft wide.

Who owns FM over Davis Creek?

It is owned by the County Highway Agency.