US Bridges

Rt Jj S over Br Big Rvr

Fair

Washington County, Missouri · S 12 T 35 N R 1 E · Structure no. 9479

Built
1900
125 years old
Condition
Fair
inspected June 2024
Type
Culvert
Concrete Continuous
Length
22 ft
2 main spans
Daily traffic
311
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Jj S over Br Big Rvr is a concrete continuous culvert carrying Rt Jj S over Br Big Rvr in Washington County, Missouri. It was built in 1900, so it is 125 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 311 vehicles a day, roughly 10% of them trucks, projected to reach 435 by 2044. The structure is 22 ft (6.8 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesRt Jj S
CrossesBr Big Rvr
LocationS 12 T 35 N R 1 E
RouteState Highway 0JJ
CountyWashington County
StateMissouri
Coordinates37.75751, -90.88391
Functional classRural Minor 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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating15.9 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadOther
Structure length22 ft (6.8 m)
Longest span11 ft (3.5 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic311 (2024)
Projected traffic435 by 2044
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

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 Br Big Rvr built?

It was built in 1900, making it 125 years old in 2025.

What condition is Rt Jj S over Br Big Rvr 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 June 2024.

How much traffic does Rt Jj S over Br Big Rvr carry?

About 311 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Rt Jj S over Br Big Rvr?

The structure is 22 ft (6.8 m) long with a longest span of 11 ft (3.5 m) and a deck 22 ft wide.

Who owns Rt Jj S over Br Big Rvr?

It is owned by the State Highway Agency.