US Bridges

FM over Waterman Creek

Good

O'Brien County, Iowa · 095391001 · Structure no. 000000000259610

Built
1953
72 years old, rebuilt 1988
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
153 ft
3 main spans
Daily traffic
797
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Waterman Creek is a steel continuous stringer/multi-beam or girder carrying FM over Waterman Creek in O'Brien County, Iowa. It was built in 1953 and reconstructed in 1988, so it is 72 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 797 vehicles a day, roughly 24% of them trucks, projected to reach 797 by 2043. The structure is 153 ft (46.6 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesFM
CrossesWaterman Creek
Location095391001
RouteCounty Highway 0
StateIowa
Coordinates43.06869, -95.44628
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 protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating44.3 US tons
Inventory rating26.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span59 ft (18 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic797 (2022)
Projected traffic797 by 2043
Trucks24%
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$85,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Waterman Creek built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1988.

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 2023.

How much traffic does FM over Waterman Creek carry?

About 797 vehicles per day (2022 count), of which roughly 24% are trucks.

How long is FM over Waterman Creek?

The structure is 153 ft (46.6 m) long with a longest span of 59 ft (18 m) and a deck 32 ft wide.

Who owns FM over Waterman Creek?

It is owned by the County Highway Agency.