US Bridges

105th Ave over Yankee Run CR

Good

Clinton County, Iowa · 081E10706 · Structure no. 000000000121661

Built
1971
54 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
117 ft
3 main spans
Daily traffic
73
2022 count
Owner
County
County Highway Agency

About this bridge

105th Ave over Yankee Run CR is a concrete continuous slab carrying 105th Ave over Yankee Run CR in Clinton County, Iowa. It was built in 1971, so it is 54 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 73 vehicles a day, projected to reach 73 by 2044. The structure is 117 ft (35.7 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries105th Ave
CrossesYankee Run CR
Location081E10706
RouteCounty Highway 0
CountyClinton County
StateIowa
Coordinates41.8395, -90.88851
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating59.7 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length117 ft (35.7 m)
Longest span44 ft (13.4 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic73 (2022)
Projected traffic73 by 2044
Trucks0%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 105th Ave over Yankee Run CR built?

It was built in 1971, making it 54 years old in 2025.

What condition is 105th Ave over Yankee Run CR 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 January 2024.

How much traffic does 105th Ave over Yankee Run CR carry?

About 73 vehicles per day (2022 count).

How long is 105th Ave over Yankee Run CR?

The structure is 117 ft (35.7 m) long with a longest span of 44 ft (13.4 m) and a deck 32 ft wide.

Who owns 105th Ave over Yankee Run CR?

It is owned by the County Highway Agency.