US Bridges

1340 180th ST over West Iowa River

Good

Hancock County, Iowa · 095243001 · Structure no. 000000000173341

Built
2005
20 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
115 ft
3 main spans
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

1340 180th ST over West Iowa River is a concrete continuous slab carrying 1340 180th ST over West Iowa River in Hancock County, Iowa. It was built in 2005, so it is 20 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 21 vehicles a day, projected to reach 21 by 2044. The structure is 115 ft (35.1 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries1340 180th ST
CrossesWest Iowa River
Location095243001
RouteCounty Highway 0
StateIowa
Coordinates43.02422, -93.72584
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 inspectionMarch 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating91.8 US tons
Inventory rating54.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length115 ft (35.1 m)
Longest span44 ft (13.4 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic21 by 2044
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 1340 180th ST over West Iowa River built?

It was built in 2005, making it 20 years old in 2025.

What condition is 1340 180th ST over West Iowa 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 March 2024.

How much traffic does 1340 180th ST over West Iowa River carry?

About 21 vehicles per day (2022 count).

How long is 1340 180th ST over West Iowa River?

The structure is 115 ft (35.1 m) long with a longest span of 44 ft (13.4 m) and a deck 27 ft wide.

Who owns 1340 180th ST over West Iowa River?

It is owned by the County Highway Agency.