US Bridges

Rt Aa S over Doe Run CR

Fair

St. Francois County, Missouri · S 35 T 35 N R 5 E · Structure no. 3718

Built
1990
35 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
191 ft
5 main spans
Daily traffic
935
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Aa S over Doe Run CR is a prestressed concrete continuous tee beam carrying Rt Aa S over Doe Run CR in St. Francois County, Missouri. It was built in 1990, so it is 35 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 935 vehicles a day, roughly 11% of them trucks, projected to reach 1,496 by 2044. The structure is 191 ft (58.2 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesRt Aa S
CrossesDoe Run CR
LocationS 35 T 35 N R 5 E
RouteState Highway 0AA
CountySt. Francois County
StateMissouri
Coordinates37.69355, -90.44131
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.6 US tons
Inventory rating27.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length191 ft (58.2 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic935 (2024)
Projected traffic1,496 by 2044
Trucks11%
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 Aa S over Doe Run CR built?

It was built in 1990, making it 35 years old in 2025.

What condition is Rt Aa S over Doe Run 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 October 2024.

How much traffic does Rt Aa S over Doe Run CR carry?

About 935 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt Aa S over Doe Run CR?

The structure is 191 ft (58.2 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns Rt Aa S over Doe Run CR?

It is owned by the State Highway Agency.