US Bridges

Rt Aa S over Indian Creek

Fair

Morgan County, Missouri · S 5 T 41 N R 16 W · Structure no. 3641

Built
1986
39 years old
Condition
Fair
inspected December 2023
Type
Tee Beam
Prestressed Concrete Continuous
Length
124 ft
3 main spans
Daily traffic
808
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Aa S over Indian Creek is a prestressed concrete continuous tee beam carrying Rt Aa S over Indian Creek in Morgan County, Missouri. It was built in 1986, so it is 39 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 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 808 vehicles a day, roughly 5% of them trucks, projected to reach 1,495 by 2044. The structure is 124 ft (37.8 m) long and 35 ft wide. If it were closed, the detour would be 19.3 mi (31 km).

CarriesRt Aa S
CrossesIndian Creek
LocationS 5 T 41 N R 16 W
RouteState Highway 0AA
Coordinates38.33816, -92.71944
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65.5 US tons
Inventory rating39.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length124 ft (37.8 m)
Longest span41 ft (12.5 m)
Deck width35 ft (10.8 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic808 (2024)
Projected traffic1,495 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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 Indian Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Rt Aa S over Indian Creek 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 December 2023.

How much traffic does Rt Aa S over Indian Creek carry?

About 808 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Rt Aa S over Indian Creek?

The structure is 124 ft (37.8 m) long with a longest span of 41 ft (12.5 m) and a deck 35 ft wide.

Who owns Rt Aa S over Indian Creek?

It is owned by the State Highway Agency.