US Bridges

1800th ST over W Fork W Nishnabotna

Good

Shelby County, Iowa · 80838 · Structure no. 000000000306201

Built
2017
8 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
217 ft
3 main spans
Daily traffic
26
2022 count
Owner
County
County Highway Agency

About this bridge

1800th ST over W Fork W Nishnabotna is a concrete stringer/multi-beam or girder carrying 1800th ST over W Fork W Nishnabotna in Shelby County, Iowa. It was built in 2017, so it is 8 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 26 vehicles a day, projected to reach 26 by 2042. The structure is 217 ft (66.1 m) long and 27 ft wide. If it were closed, the detour would be 85.1 mi (137 km).

Location

Open in Google Maps
Carries1800th ST
CrossesW Fork W Nishnabotna
Location80838
RouteCounty Highway 0
CountyShelby County
StateIowa
Coordinates41.7612, -95.30152
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 inspectionJanuary 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating50.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length217 ft (66.1 m)
Longest span77 ft (23.6 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26 (2022)
Projected traffic26 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed85.1 mi (137 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 1800th ST over W Fork W Nishnabotna built?

It was built in 2017, making it 8 years old in 2025.

What condition is 1800th ST over W Fork W Nishnabotna 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 January 2024.

How much traffic does 1800th ST over W Fork W Nishnabotna carry?

About 26 vehicles per day (2022 count).

How long is 1800th ST over W Fork W Nishnabotna?

The structure is 217 ft (66.1 m) long with a longest span of 77 ft (23.6 m) and a deck 27 ft wide.

Who owns 1800th ST over W Fork W Nishnabotna?

It is owned by the County Highway Agency.