US Bridges

FM over Little Flint Creek

Good

Des Moines County, Iowa · 070031706 · Structure no. 000000000143161

Built
1998
27 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
35 ft
2 main spans
Daily traffic
160
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Little Flint Creek is a concrete continuous culvert carrying FM over Little Flint Creek in Des Moines County, Iowa. It was built in 1998, so it is 27 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 160 vehicles a day, projected to reach 160 by 2043. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesLittle Flint Creek
Location070031706
RouteCounty Highway 0
StateIowa
Coordinates40.85883, -91.23443
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span17 ft (5.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2022)
Projected traffic160 by 2043
Trucks0%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Little Flint Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is FM over Little Flint 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 September 2023.

How much traffic does FM over Little Flint Creek carry?

About 160 vehicles per day (2022 count).

How long is FM over Little Flint Creek?

The structure is 35 ft (10.7 m) long with a longest span of 17 ft (5.2 m).

Who owns FM over Little Flint Creek?

It is owned by the County Highway Agency.