US Bridges

H33 180th ST over East Nodaway River

Good

Adams County, Iowa · 072321701 · Structure no. 000000000059511

Built
2015
10 years old
Condition
Good
inspected January 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
204 ft
3 main spans
Daily traffic
409
2022 count
Owner
County
County Highway Agency

About this bridge

H33 180th ST over East Nodaway River is a prestressed concrete stringer/multi-beam or girder carrying H33 180th ST over East Nodaway River in Adams County, Iowa. It was built in 2015, so it is 10 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 409 vehicles a day, roughly 10% of them trucks, projected to reach 409 by 2043. The structure is 204 ft (62.3 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesH33 180th ST
CrossesEast Nodaway River
Location072321701
RouteCounty Highway 0
StateIowa
Coordinates41.04335, -94.56309
Functional classRural Major Collector

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.
Substructure8 Very GoodNo problems noted.
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 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 rating70.8 US tons
Inventory rating54.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length204 ft (62.3 m)
Longest span73 ft (22.3 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic409 (2022)
Projected traffic409 by 2043
Trucks10%
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 H33 180th ST over East Nodaway River built?

It was built in 2015, making it 10 years old in 2025.

What condition is H33 180th ST over East Nodaway 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 January 2022.

How much traffic does H33 180th ST over East Nodaway River carry?

About 409 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is H33 180th ST over East Nodaway River?

The structure is 204 ft (62.3 m) long with a longest span of 73 ft (22.3 m) and a deck 33 ft wide.

Who owns H33 180th ST over East Nodaway River?

It is owned by the County Highway Agency.