US Bridges

Ia 92 over North Skunk River

Good

Mahaska County, Iowa · 2.6 Mi. E. of Co. Rd. V13 · Structure no. 000000000035031

Built
2022
3 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
476 ft
3 main spans
Daily traffic
2,800
2023 count
Owner
State
State Highway Agency

About this bridge

Ia 92 over North Skunk River is a prestressed concrete stringer/multi-beam or girder carrying Ia 92 over North Skunk River in Mahaska County, Iowa. It was built in 2022, so it is 3 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 2,800 vehicles a day, roughly 13% of them trucks, projected to reach 2,800 by 2043. The structure is 476 ft (145.2 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIa 92
CrossesNorth Skunk River
Location2.6 Mi. E. of Co. Rd. V13
RouteState Highway 92
StateIowa
Coordinates41.3361, -92.41783
Functional classRural Principal Arterial - Other

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 protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length476 ft (145.2 m)
Longest span157 ft (47.9 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,800 (2023)
Projected traffic2,800 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Ia 92 over North Skunk River built?

It was built in 2022, making it 3 years old in 2025.

What condition is Ia 92 over North Skunk River 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 May 2023.

How much traffic does Ia 92 over North Skunk River carry?

About 2,800 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Ia 92 over North Skunk River?

The structure is 476 ft (145.2 m) long with a longest span of 157 ft (47.9 m) and a deck 47 ft wide.

Who owns Ia 92 over North Skunk River?

It is owned by the State Highway Agency.