US Bridges

450 TH ST over Br of Willow CR

Good

Gentry County, Missouri · S 22 T 61 N R 32 W · Structure no. 31965

Built
2006
19 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
24 ft
3 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

450 TH ST over Br of Willow CR is a steel continuous stringer/multi-beam or girder carrying 450 TH ST over Br of Willow CR in Gentry County, Missouri. It was built in 2006, so it is 19 years old, younger than the Missouri average of 45.1 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 58 by 2044. The structure is 24 ft (7.2 m) long and 20 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries450 TH ST
CrossesBr of Willow CR
LocationS 22 T 61 N R 32 W
RouteCounty Highway 403
Coordinates40.06792, -94.48844
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating43.7 US tons
Inventory rating26.8 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span18 ft (5.6 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic58 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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 450 TH ST over Br of Willow CR built?

It was built in 2006, making it 19 years old in 2025.

What condition is 450 TH ST over Br of Willow CR 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 2023.

How much traffic does 450 TH ST over Br of Willow CR carry?

About 50 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 450 TH ST over Br of Willow CR?

The structure is 24 ft (7.2 m) long with a longest span of 18 ft (5.6 m) and a deck 20 ft wide.

Who owns 450 TH ST over Br of Willow CR?

It is owned by the County Highway Agency.