US Bridges

180th ST over Sheel Rock River Branch

FairPosted for load

Butler County, Iowa · 092151603 · Structure no. 000000000088361

Built
1977
48 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
103 ft
3 main spans
Daily traffic
51
2022 count
Owner
County
County Highway Agency

About this bridge

180th ST over Sheel Rock River Branch is a concrete continuous slab carrying 180th ST over Sheel Rock River Branch in Butler County, Iowa. It was built in 1977, so it is 48 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 51 vehicles a day, projected to reach 51 by 2044. The structure is 103 ft (31.4 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries180th ST
CrossesSheel Rock River Branch
Location092151603
RouteCounty Highway 0
CountyButler County
StateIowa
Coordinates42.78822, -92.61705
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length103 ft (31.4 m)
Longest span39 ft (11.9 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic51 (2022)
Projected traffic51 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 180th ST over Sheel Rock River Branch built?

It was built in 1977, making it 48 years old in 2025.

What condition is 180th ST over Sheel Rock River Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in April 2024.

How much traffic does 180th ST over Sheel Rock River Branch carry?

About 51 vehicles per day (2022 count).

How long is 180th ST over Sheel Rock River Branch?

The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns 180th ST over Sheel Rock River Branch?

It is owned by the County Highway Agency.