US Bridges

Valley ST over Branch Turkey River

Good

Howard County, Iowa · 098110304 · Structure no. 000000000182051

Built
1980
45 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
145
2022 count
Owner
County
County Highway Agency

About this bridge

Valley ST over Branch Turkey River is a concrete continuous culvert carrying Valley ST over Branch Turkey River in Howard County, Iowa. It was built in 1980, so it is 45 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 145 vehicles a day, projected to reach 145 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesValley ST
CrossesBranch Turkey River
Location098110304
RouteCounty Highway 0
StateIowa
Coordinates43.33045, -92.13979
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length24 ft (7.3 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic145 (2022)
Projected traffic145 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 Valley ST over Branch Turkey River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Valley ST over Branch Turkey 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 2023.

How much traffic does Valley ST over Branch Turkey River carry?

About 145 vehicles per day (2022 count).

How long is Valley ST over Branch Turkey River?

The structure is 24 ft (7.3 m) long with a longest span of 12 ft (3.7 m).

Who owns Valley ST over Branch Turkey River?

It is owned by the County Highway Agency.