US Bridges

Ia 92 over Muchakinock Creek

Good

Mahaska County, Iowa · 1.3 Mi. W of Jct. Ia 163 · Structure no. 000000000034981

Built
2021
4 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
234 ft
2 main spans
Daily traffic
2,840
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 92 over Muchakinock Creek is a steel continuous stringer/multi-beam or girder carrying Ia 92 over Muchakinock Creek in Mahaska County, Iowa. It was built in 2021, so it is 4 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 2,840 vehicles a day, roughly 21% of them trucks, projected to reach 2,840 by 2044. The structure is 234 ft (71.3 m) long and 47 ft wide. If it were closed, the detour would be 44.7 mi (72 km).

CarriesIa 92
CrossesMuchakinock Creek
Location1.3 Mi. W of Jct. Ia 163
RouteState Highway 92
StateIowa
Coordinates41.28819, -92.69694
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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
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

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length234 ft (71.3 m)
Longest span115 ft (35.1 m)
Deck width47 ft (14.4 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,840 (2022)
Projected traffic2,840 by 2044
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed44.7 mi (72 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 Muchakinock Creek built?

It was built in 2021, making it 4 years old in 2025.

What condition is Ia 92 over Muchakinock 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 August 2024.

How much traffic does Ia 92 over Muchakinock Creek carry?

About 2,840 vehicles per day (2022 count), of which roughly 21% are trucks.

How long is Ia 92 over Muchakinock Creek?

The structure is 234 ft (71.3 m) long with a longest span of 115 ft (35.1 m) and a deck 47 ft wide.

Who owns Ia 92 over Muchakinock Creek?

It is owned by the State Highway Agency.