US Bridges

Rt Jj S over Long Br

Fair

Audrain County, Missouri · S 8 T 50 N R 8 W · Structure no. 8454

Built
1965
60 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete Continuous
Length
30 ft
2 main spans
Daily traffic
496
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Jj S over Long Br is a concrete continuous culvert carrying Rt Jj S over Long Br in Audrain County, Missouri. It was built in 1965, so it is 60 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 6 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 496 vehicles a day, roughly 20% of them trucks, projected to reach 719 by 2044. The structure is 30 ft (9.1 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesRt Jj S
CrossesLong Br
LocationS 8 T 50 N R 8 W
RouteState Highway 0JJ
CountyAudrain County
StateMissouri
Coordinates39.12719, -91.83208
Functional classRural Major Collector

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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating90.3 US tons
Inventory rating54.6 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 15
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic496 (2024)
Projected traffic719 by 2044
Trucks20%
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

OwnerState Highway Agency
Maintained byState 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 Rt Jj S over Long Br built?

It was built in 1965, making it 60 years old in 2025.

What condition is Rt Jj S over Long 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 October 2023.

How much traffic does Rt Jj S over Long Br carry?

About 496 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is Rt Jj S over Long Br?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m) and a deck 33 ft wide.

Who owns Rt Jj S over Long Br?

It is owned by the State Highway Agency.