US Bridges

FM over Tom Creek

PoorPosted for load

Madison County, Iowa · 077283004 · Structure no. 000000000235070

Built
1954
71 years old
Condition
Poor
inspected August 2023
Type
Slab
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
477
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Tom Creek is a concrete continuous slab carrying FM over Tom Creek in Madison County, Iowa. It was built in 1954, 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 4 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 load restriction.

It carries about 477 vehicles a day, roughly 9% of them trucks, projected to reach 477 by 2043. The structure is 127 ft (38.7 m) long and 23 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFM
CrossesTom Creek
Location077283004
RouteCounty Highway 0
StateIowa
Coordinates41.43498, -94.1274
Functional classRural Major 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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.1 US tons
Inventory rating20.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length127 ft (38.7 m)
Longest span49 ft (14.9 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic477 (2022)
Projected traffic477 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Tom Creek built?

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

What condition is FM over Tom 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 August 2023.

How much traffic does FM over Tom Creek carry?

About 477 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is FM over Tom Creek?

The structure is 127 ft (38.7 m) long with a longest span of 49 ft (14.9 m) and a deck 23 ft wide.

Who owns FM over Tom Creek?

It is owned by the County Highway Agency.