US Bridges

Witt RD 494 over Br of Coon CR

Fair

Lincoln County, Missouri · S 8 T 48 N R 2 W · Structure no. 33320

Built
2010
15 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

Witt RD 494 over Br of Coon CR is a concrete culvert carrying Witt RD 494 over Br of Coon CR in Lincoln County, Missouri. It was built in 2010, so it is 15 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 56 by 2043. The structure is 27 ft (8.2 m) long and 24 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWitt RD 494
CrossesBr of Coon CR
LocationS 8 T 48 N R 2 W
RouteCounty Highway 269
CountyLincoln County
StateMissouri
Coordinates38.95044, -91.15831
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span7 ft (2.1 m)
Deck width24 ft (7.3 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic56 by 2043
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Witt RD 494 over Br of Coon CR built?

It was built in 2010, making it 15 years old in 2025.

What condition is Witt RD 494 over Br of Coon 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 April 2024.

How much traffic does Witt RD 494 over Br of Coon CR carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Witt RD 494 over Br of Coon CR?

The structure is 27 ft (8.2 m) long with a longest span of 7 ft (2.1 m) and a deck 24 ft wide.

Who owns Witt RD 494 over Br of Coon CR?

It is owned by the County Highway Agency.