US Bridges

260 TH Street over East Nodaway River

Fair

Adams County, Iowa · 071352901 · Structure no. 000000000059351

Built
1976
49 years old
Condition
Fair
inspected January 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
179 ft
3 main spans
Daily traffic
439
2022 count
Owner
County
County Highway Agency

About this bridge

260 TH Street over East Nodaway River is a prestressed concrete stringer/multi-beam or girder carrying 260 TH Street over East Nodaway River in Adams County, Iowa. It was built in 1976, so it is 49 years old, older than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 439 vehicles a day, roughly 12% of them trucks, projected to reach 439 by 2043. The structure is 179 ft (54.6 m) long and 32 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Carries260 TH Street
CrossesEast Nodaway River
Location071352901
RouteCounty Highway 0
StateIowa
Coordinates40.92956, -94.91033
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2022
Inspection intervalevery 48 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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.6 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length179 ft (54.6 m)
Longest span63 ft (19.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic439 (2022)
Projected traffic439 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 260 TH Street over East Nodaway River built?

It was built in 1976, making it 49 years old in 2025.

What condition is 260 TH Street over East Nodaway River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2022.

How much traffic does 260 TH Street over East Nodaway River carry?

About 439 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is 260 TH Street over East Nodaway River?

The structure is 179 ft (54.6 m) long with a longest span of 63 ft (19.2 m) and a deck 32 ft wide.

Who owns 260 TH Street over East Nodaway River?

It is owned by the County Highway Agency.