US Bridges

Elba Ave over Muchakinock Creek

Good

Mahaska County, Iowa · 075170102 · Structure no. 000000000236671

Built
2016
9 years old
Condition
Good
inspected December 2022
Type
Slab
Concrete Continuous
Length
123 ft
3 main spans
Daily traffic
90
2022 count
Owner
County
County Highway Agency

About this bridge

Elba Ave over Muchakinock Creek is a concrete continuous slab carrying Elba Ave over Muchakinock Creek in Mahaska County, Iowa. It was built in 2016, so it is 9 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 90 vehicles a day, projected to reach 90 by 2043. The structure is 123 ft (37.5 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesElba Ave
CrossesMuchakinock Creek
Location075170102
RouteCounty Highway 0
StateIowa
Coordinates41.33035, -92.77503
Functional classRural Local

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 inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length123 ft (37.5 m)
Longest span47 ft (14.3 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2022)
Projected traffic90 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Elba Ave over Muchakinock Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Elba Ave 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 December 2022.

How much traffic does Elba Ave over Muchakinock Creek carry?

About 90 vehicles per day (2022 count).

How long is Elba Ave over Muchakinock Creek?

The structure is 123 ft (37.5 m) long with a longest span of 47 ft (14.3 m) and a deck 33 ft wide.

Who owns Elba Ave over Muchakinock Creek?

It is owned by the County Highway Agency.