US Bridges

1370 Union Ave over East Iowa River

Good

Hancock County, Iowa · 094231604 · Structure no. 000000000172611

Built
1983
42 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
152 ft
3 main spans
Daily traffic
21
2022 count
Owner
County
County Highway Agency

About this bridge

1370 Union Ave over East Iowa River is a concrete continuous slab carrying 1370 Union Ave over East Iowa River in Hancock County, Iowa. It was built in 1983, so it is 42 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 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 21 vehicles a day, projected to reach 21 by 2043. The structure is 152 ft (46.3 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries1370 Union Ave
CrossesEast Iowa River
Location094231604
RouteCounty Highway 0
CountyHancock County
StateIowa
Coordinates42.961, -93.57695
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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47 US tons
Inventory rating10.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length152 ft (46.3 m)
Longest span58 ft (17.7 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2022)
Projected traffic21 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 1370 Union Ave over East Iowa River built?

It was built in 1983, making it 42 years old in 2025.

What condition is 1370 Union Ave over East 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 April 2023.

How much traffic does 1370 Union Ave over East Iowa River carry?

About 21 vehicles per day (2022 count).

How long is 1370 Union Ave over East Iowa River?

The structure is 152 ft (46.3 m) long with a longest span of 58 ft (17.7 m) and a deck 26 ft wide.

Who owns 1370 Union Ave over East Iowa River?

It is owned by the County Highway Agency.