US Bridges

FM over Truliner Creek

Good

Humboldt County, Iowa · 093290906 · Structure no. 000000000029040

Built
1958
67 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
112 ft
3 main spans
Daily traffic
578
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Truliner Creek is a concrete continuous slab carrying FM over Truliner Creek in Humboldt County, Iowa. It was built in 1958, so it is 67 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 578 vehicles a day, roughly 15% of them trucks, projected to reach 578 by 2044. The structure is 112 ft (34.1 m) long and 34 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesFM
CrossesTruliner Creek
Location093290906
RouteCounty Highway 0
StateIowa
Coordinates42.88184, -94.28636
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating31.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length112 ft (34.1 m)
Longest span43 ft (13.1 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic578 (2022)
Projected traffic578 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 Truliner Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is FM over Truliner 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 November 2024.

How much traffic does FM over Truliner Creek carry?

About 578 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is FM over Truliner Creek?

The structure is 112 ft (34.1 m) long with a longest span of 43 ft (13.1 m) and a deck 34 ft wide.

Who owns FM over Truliner Creek?

It is owned by the County Highway Agency.