US Bridges

Alcorn RD over Br of James Rvr

Good

Webster County, Missouri · S 23 T 29 N R 17 W · Structure no. 30950

Built
2002
23 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
50
2023 count
Owner
Local
Other Local Agency

About this bridge

Alcorn RD over Br of James Rvr is a concrete continuous slab carrying Alcorn RD over Br of James Rvr in Webster County, Missouri. It was built in 2002, so it is 23 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 83 by 2043. The structure is 22 ft (6.6 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesAlcorn RD
CrossesBr of James Rvr
LocationS 23 T 29 N R 17 W
RouteCounty Highway 400
Coordinates37.19541, -92.75591
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
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 rating51.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span11 ft (3.3 m)
Deck width23 ft (7 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic83 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerOther Local Agency
Maintained byOther Local 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 Alcorn RD over Br of James Rvr built?

It was built in 2002, making it 23 years old in 2025.

What condition is Alcorn RD over Br of James Rvr 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 2023.

How much traffic does Alcorn RD over Br of James Rvr carry?

About 50 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Alcorn RD over Br of James Rvr?

The structure is 22 ft (6.6 m) long with a longest span of 11 ft (3.3 m) and a deck 23 ft wide.

Who owns Alcorn RD over Br of James Rvr?

It is owned by the Other Local Agency.