US Bridges

180th ST over Mill CR

Fair

Nodaway County, Missouri · S 6 T 65 N R 37 W · Structure no. 13245

Built
1995
30 years old
Condition
Fair
inspected December 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
136 ft
3 main spans
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

180th ST over Mill CR is a prestressed concrete continuous tee beam carrying 180th ST over Mill CR in Nodaway County, Missouri. It was built in 1995, so it is 30 years old, younger than the Missouri average of 45.1 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2044. The structure is 136 ft (41.5 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries180th ST
CrossesMill CR
LocationS 6 T 65 N R 37 W
RouteCounty Highway 322
Coordinates40.4634, -95.10722
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating41.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic40 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 180th ST over Mill CR built?

It was built in 1995, making it 30 years old in 2025.

What condition is 180th ST over Mill CR 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 December 2024.

How much traffic does 180th ST over Mill CR carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 180th ST over Mill CR?

The structure is 136 ft (41.5 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns 180th ST over Mill CR?

It is owned by the County Highway Agency.