US Bridges

FM over Lamkin Creek

Good

O'Brien County, Iowa · 096422202 · Structure no. 000000000261381

Built
1976
49 years old
Condition
Good
inspected June 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
1,337
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Lamkin Creek is a steel stringer/multi-beam or girder carrying FM over Lamkin Creek in O'Brien County, Iowa. It was built in 1976, so it is 49 years old, older 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 1,337 vehicles a day, roughly 20% of them trucks, projected to reach 1,337 by 2043. The structure is 38 ft (11.6 m) long and 38 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesLamkin Creek
Location096422202
RouteCounty Highway 0
StateIowa
Coordinates43.12343, -95.80209
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length38 ft (11.6 m)
Longest span36 ft (11 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,337 (2022)
Projected traffic1,337 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Lamkin Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is FM over Lamkin 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 June 2022.

How much traffic does FM over Lamkin Creek carry?

About 1,337 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is FM over Lamkin Creek?

The structure is 38 ft (11.6 m) long with a longest span of 36 ft (11 m) and a deck 38 ft wide.

Who owns FM over Lamkin Creek?

It is owned by the County Highway Agency.