US Bridges

Local - Nshna V over Nishnabotna River

Good

Cass County, Iowa · 075371003 · Structure no. 000000000098781

Built
1992
33 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
291 ft
3 main spans
Daily traffic
82
2022 count
Owner
County
County Highway Agency

About this bridge

Local - Nshna V over Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying Local - Nshna V over Nishnabotna River in Cass County, Iowa. It was built in 1992, so it is 33 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 82 vehicles a day, roughly 6% of them trucks, projected to reach 82 by 2044. The structure is 291 ft (88.7 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLocal - Nshna V
CrossesNishnabotna River
Location075371003
RouteCounty Highway 0
StateIowa
Coordinates41.30963, -95.09783
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating72.9 US tons
Inventory rating43.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length291 ft (88.7 m)
Longest span107 ft (32.6 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82 (2022)
Projected traffic82 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Local - Nshna V over Nishnabotna River built?

It was built in 1992, making it 33 years old in 2025.

What condition is Local - Nshna V over Nishnabotna 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 2024.

How much traffic does Local - Nshna V over Nishnabotna River carry?

About 82 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Local - Nshna V over Nishnabotna River?

The structure is 291 ft (88.7 m) long with a longest span of 107 ft (32.6 m) and a deck 26 ft wide.

Who owns Local - Nshna V over Nishnabotna River?

It is owned by the County Highway Agency.