US Bridges

County Road 311 over Long Branch

Good

Andrew County, Missouri · S 29 T 59 N R 34 W · Structure no. 37263

Built
2024
1 years old
Condition
Good
inspected April 2024
Type
Tee Beam
Prestressed Concrete
Length
85 ft
1 main span
Daily traffic
40
2024 count
Owner
County
County Highway Agency

About this bridge

County Road 311 over Long Branch is a prestressed concrete tee beam carrying County Road 311 over Long Branch in Andrew County, Missouri. It was built in 2024, so it is 1 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: new structure not yet open to traffic.

It carries about 40 vehicles a day, roughly 10% of them trucks, projected to reach 46 by 2044. The structure is 85 ft (25.9 m) long and 24 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesCounty Road 311
CrossesLong Branch
LocationS 29 T 59 N R 34 W
RouteCounty Highway 311
Coordinates39.90049, -94.734
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusNew structure not yet open to traffic
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.3 US tons
Inventory rating62.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length85 ft (25.9 m)
Longest span81 ft (24.8 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2024)
Projected traffic46 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 County Road 311 over Long Branch built?

It was built in 2024, making it 1 years old in 2025.

What condition is County Road 311 over Long Branch 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 April 2024.

How much traffic does County Road 311 over Long Branch carry?

About 40 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County Road 311 over Long Branch?

The structure is 85 ft (25.9 m) long with a longest span of 81 ft (24.8 m) and a deck 24 ft wide.

Who owns County Road 311 over Long Branch?

It is owned by the County Highway Agency.