US Bridges

3966 over S Double Br

Fair

Bates County, Missouri · S 16 T 39 N R 30 W · Structure no. 24458

Built
1989
36 years old
Condition
Fair
inspected December 2024
Type
Girder and Floorbeam System
Steel
Length
48 ft
1 main span
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

3966 over S Double Br is a steel girder and floorbeam system carrying 3966 over S Double Br in Bates County, Missouri. It was built in 1989, so it is 36 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 5 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 33 by 2043. The structure is 48 ft (14.6 m) long and 16 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
Carries3966
CrossesS Double Br
LocationS 16 T 39 N R 30 W
RouteCounty Highway 495
CountyBates County
StateMissouri
Coordinates38.16046, -94.22623
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating68.5 US tons
Inventory rating42.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length48 ft (14.6 m)
Longest span47 ft (14.3 m)
Deck width16 ft (4.8 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic33 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 3966 over S Double Br built?

It was built in 1989, making it 36 years old in 2025.

What condition is 3966 over S Double 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 December 2024.

How much traffic does 3966 over S Double Br carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 3966 over S Double Br?

The structure is 48 ft (14.6 m) long with a longest span of 47 ft (14.3 m) and a deck 16 ft wide.

Who owns 3966 over S Double Br?

It is owned by the County Highway Agency.