US Bridges

FM over Waterman Creek

Good

O'Brien County, Iowa · 097400102 · Structure no. 000000000261650

Built
1965
60 years old, rebuilt 1995
Condition
Good
inspected June 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
309
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Waterman Creek is a concrete continuous culvert carrying FM over Waterman Creek in O'Brien County, Iowa. It was built in 1965 and reconstructed in 1995, so it is 60 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 309 vehicles a day, roughly 30% of them trucks, projected to reach 309 by 2044. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesWaterman Creek
Location097400102
RouteCounty Highway 0
StateIowa
Coordinates43.24699, -95.52548
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating45 US tons
Inventory rating22.2 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic309 (2022)
Projected traffic309 by 2044
Trucks30%
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Waterman Creek built?

It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1995.

What condition is FM over Waterman 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 2024.

How much traffic does FM over Waterman Creek carry?

About 309 vehicles per day (2022 count), of which roughly 30% are trucks.

How long is FM over Waterman Creek?

The structure is 22 ft (6.7 m) long with a longest span of 11 ft (3.4 m).

Who owns FM over Waterman Creek?

It is owned by the County Highway Agency.