US Bridges

Local over Hannah Creek

Good

Crawford County, Iowa · 084371001 · Structure no. 000000000128491

Built
1991
34 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
104 ft
3 main spans
Daily traffic
62
2022 count
Owner
County
County Highway Agency

About this bridge

Local over Hannah Creek is a concrete continuous slab carrying Local over Hannah Creek in Crawford County, Iowa. It was built in 1991, so it is 34 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 62 vehicles a day, projected to reach 62 by 2044. The structure is 104 ft (31.7 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLocal
CrossesHannah Creek
Location084371001
RouteCounty Highway 0
StateIowa
Coordinates42.10811, -95.13689
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 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length104 ft (31.7 m)
Longest span39 ft (11.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62 (2022)
Projected traffic62 by 2044
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Local over Hannah Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Local over Hannah 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 March 2024.

How much traffic does Local over Hannah Creek carry?

About 62 vehicles per day (2022 count).

How long is Local over Hannah Creek?

The structure is 104 ft (31.7 m) long with a longest span of 39 ft (11.9 m) and a deck 26 ft wide.

Who owns Local over Hannah Creek?

It is owned by the County Highway Agency.