US Bridges

FM over Smith Creek

Fair

Buchanan County, Iowa · 088083506 · Structure no. 000000000082151

Built
2003
22 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
324
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Smith Creek is a concrete culvert carrying FM over Smith Creek in Buchanan County, Iowa. It was built in 2003, so it is 22 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 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 324 vehicles a day, roughly 23% of them trucks, projected to reach 324 by 2044. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesSmith Creek
Location088083506
RouteCounty Highway 0
StateIowa
Coordinates42.38574, -91.74082
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.1 US tons
Inventory rating35.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2022)
Projected traffic324 by 2044
Trucks23%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Smith Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is FM over Smith 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 2024.

How much traffic does FM over Smith Creek carry?

About 324 vehicles per day (2022 count), of which roughly 23% are trucks.

How long is FM over Smith Creek?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m).

Who owns FM over Smith Creek?

It is owned by the County Highway Agency.