US Bridges

FM over Deer Creek

PoorPosted for load

Tama County, Iowa · 083151503 · Structure no. 000000000011340

Built
1954
71 years old, rebuilt 1996
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
178 ft
3 main spans
Daily traffic
275
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Deer Creek is a steel continuous stringer/multi-beam or girder carrying FM over Deer Creek in Tama County, Iowa. It was built in 1954 and reconstructed in 1996, so it is 71 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 275 vehicles a day, roughly 9% of them trucks, projected to reach 275 by 2044. The structure is 178 ft (54.3 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesDeer Creek
Location083151503
RouteCounty Highway 0
StateIowa
Coordinates42.00008, -92.58911
Functional classRural Minor Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating31.9 US tons
Inventory rating19.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length178 ft (54.3 m)
Longest span68 ft (20.7 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic275 (2022)
Projected traffic275 by 2044
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Deer Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1996.

What condition is FM over Deer Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does FM over Deer Creek carry?

About 275 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is FM over Deer Creek?

The structure is 178 ft (54.3 m) long with a longest span of 68 ft (20.7 m) and a deck 22 ft wide.

Who owns FM over Deer Creek?

It is owned by the County Highway Agency.