US Bridges

Jefferies ST over Town Br

Fair

Audrain County, Missouri · S 25 T 51 N R 9 W · Structure no. 20886

Built
1978
47 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
35
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Jefferies ST over Town Br is a concrete culvert carrying Jefferies ST over Town Br in Audrain County, Missouri. It was built in 1978, so it is 47 years old, older 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 47 by 2043. The structure is 28 ft (8.5 m) long and 52 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesJefferies ST
CrossesTown Br
LocationS 25 T 51 N R 9 W
RouteCity Street 0
CountyAudrain County
StateMissouri
Coordinates39.17531, -91.87575
Functional classUrban 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 inspectionMarch 2023
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 geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34.7 US tons
Inventory rating27.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 10
Structure length28 ft (8.5 m)
Longest span13 ft (4 m)
Deck width52 ft (15.7 m)
Roadway width50 ft (15.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic47 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Jefferies ST over Town Br built?

It was built in 1978, making it 47 years old in 2025.

What condition is Jefferies ST over Town 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 March 2023.

How much traffic does Jefferies ST over Town Br carry?

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

How long is Jefferies ST over Town Br?

The structure is 28 ft (8.5 m) long with a longest span of 13 ft (4 m) and a deck 52 ft wide.

Who owns Jefferies ST over Town Br?

It is owned by the City or Municipal Highway Agency.