US Bridges

FM over Whiskey Creek

Good

Plymouth County, Iowa · 092433501 · Structure no. 000000000274181

Built
1997
28 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
125 ft
3 main spans
Daily traffic
848
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Whiskey Creek is a concrete continuous slab carrying FM over Whiskey Creek in Plymouth County, Iowa. It was built in 1997, so it is 28 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 848 vehicles a day, roughly 16% of them trucks, projected to reach 848 by 2044. The structure is 125 ft (38.1 m) long and 31 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesFM
CrossesWhiskey Creek
Location092433501
RouteCounty Highway 0
StateIowa
Coordinates42.74972, -95.8899
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating97.6 US tons
Inventory rating58.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span49 ft (14.9 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic848 (2022)
Projected traffic848 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Whiskey Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is FM over Whiskey 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 April 2023.

How much traffic does FM over Whiskey Creek carry?

About 848 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is FM over Whiskey Creek?

The structure is 125 ft (38.1 m) long with a longest span of 49 ft (14.9 m) and a deck 31 ft wide.

Who owns FM over Whiskey Creek?

It is owned by the County Highway Agency.