US Bridges

35th St. over Walnut Creek

Good

Jones County, Iowa · 083031903 · Structure no. 000000000206541

Built
1980
45 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
152 ft
3 main spans
Daily traffic
88
2022 count
Owner
County
County Highway Agency

About this bridge

35th St. over Walnut Creek is a steel continuous stringer/multi-beam or girder carrying 35th St. over Walnut Creek in Jones 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 88 vehicles a day, projected to reach 88 by 2043. The structure is 152 ft (46.2 m) long and 26 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Carries35th St.
CrossesWalnut Creek
Location083031903
RouteCounty Highway 0
StateIowa
Coordinates41.98361, -91.24157
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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.2 US tons
Inventory rating24.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length152 ft (46.2 m)
Longest span58 ft (17.8 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic88 (2022)
Projected traffic88 by 2043
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 35th St. over Walnut Creek built?

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

What condition is 35th St. over Walnut 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 February 2023.

How much traffic does 35th St. over Walnut Creek carry?

About 88 vehicles per day (2022 count).

How long is 35th St. over Walnut Creek?

The structure is 152 ft (46.2 m) long with a longest span of 58 ft (17.8 m) and a deck 26 ft wide.

Who owns 35th St. over Walnut Creek?

It is owned by the County Highway Agency.