US Bridges

A Avenue over Nishnabotna River

Good

Page County, Iowa · 069390802 · Structure no. 000000000267311

Built
2020
5 years old
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
362 ft
3 main spans
Daily traffic
110
2022 count
Owner
County
County Highway Agency

About this bridge

A Avenue over Nishnabotna River is a prestressed concrete stringer/multi-beam or girder carrying A Avenue over Nishnabotna River in Page County, Iowa. It was built in 2020, so it is 5 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 110 vehicles a day, projected to reach 110 by 2042. The structure is 362 ft (110.3 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesA Avenue
CrossesNishnabotna River
Location069390802
RouteCounty Highway 0
CountyPage County
StateIowa
Coordinates40.79024, -95.36607
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 inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length362 ft (110.3 m)
Longest span137 ft (41.8 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2022)
Projected traffic110 by 2042
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was A Avenue over Nishnabotna River built?

It was built in 2020, making it 5 years old in 2025.

What condition is A Avenue 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 November 2022.

How much traffic does A Avenue over Nishnabotna River carry?

About 110 vehicles per day (2022 count).

How long is A Avenue over Nishnabotna River?

The structure is 362 ft (110.3 m) long with a longest span of 137 ft (41.8 m) and a deck 33 ft wide.

Who owns A Avenue over Nishnabotna River?

It is owned by the County Highway Agency.