US Bridges

Antelope RD over Trib of Warren Br

FairPosted for load

Newton County, Missouri · S 36 T 26 N R 34 W · Structure no. 18279

Built
1930
95 years old
Condition
Fair
inspected January 2024
Type
Slab
Concrete
Length
34 ft
2 main spans
Daily traffic
70
2024 count
Owner
County
County Highway Agency

About this bridge

Antelope RD over Trib of Warren Br is a concrete slab carrying Antelope RD over Trib of Warren Br in Newton County, Missouri. It was built in 1930, so it is 95 years old, older 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. Its operating status is: posted for load restriction.

It carries about 70 vehicles a day, roughly 10% of them trucks, projected to reach 109 by 2044. The structure is 34 ft (10.4 m) long and 20 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesAntelope RD
CrossesTrib of Warren Br
LocationS 36 T 26 N R 34 W
RouteCounty Highway 180
CountyNewton County
StateMissouri
Coordinates36.93283, -94.58823
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating19.8 US tons
Inventory rating10.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length34 ft (10.4 m)
Longest span16 ft (4.9 m)
Deck width20 ft (6.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2024)
Projected traffic109 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$211,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Antelope RD over Trib of Warren Br built?

It was built in 1930, making it 95 years old in 2025.

What condition is Antelope RD over Trib of Warren Br 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 January 2024.

How much traffic does Antelope RD over Trib of Warren Br carry?

About 70 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Antelope RD over Trib of Warren Br?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (4.9 m) and a deck 20 ft wide.

Who owns Antelope RD over Trib of Warren Br?

It is owned by the County Highway Agency.