US Bridges

Scott RD 791 over Big CR

Fair

Lincoln County, Missouri · S 25 T 48 N R 1 E · Structure no. 21599

Built
1986
39 years old
Condition
Fair
inspected January 2025
Type
Tee Beam
Prestressed Concrete Continuous
Length
143 ft
3 main spans
Daily traffic
300
2023 count
Owner
County
County Highway Agency

About this bridge

Scott RD 791 over Big CR is a prestressed concrete continuous tee beam carrying Scott RD 791 over Big CR in Lincoln County, Missouri. It was built in 1986, so it is 39 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 480 by 2043. The structure is 143 ft (43.6 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesScott RD 791
CrossesBig CR
LocationS 25 T 48 N R 1 E
RouteCounty Highway 313
CountyLincoln County
StateMissouri
Coordinates38.88789, -90.86461
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length143 ft (43.6 m)
Longest span50 ft (15.2 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2023)
Projected traffic480 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Scott RD 791 over Big CR built?

It was built in 1986, making it 39 years old in 2025.

What condition is Scott RD 791 over Big CR 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 2025.

How much traffic does Scott RD 791 over Big CR carry?

About 300 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Scott RD 791 over Big CR?

The structure is 143 ft (43.6 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.

Who owns Scott RD 791 over Big CR?

It is owned by the County Highway Agency.