US Bridges

Rt Aa S over Moreau Rvr

PoorPosted for load

Cole County, Missouri · S 26 T 43 N R 14 W · Structure no. 8362

Built
1965
60 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
254 ft
3 main spans
Daily traffic
1,225
2024 count
Owner
State
State Highway Agency

About this bridge

Rt Aa S over Moreau Rvr is a steel continuous stringer/multi-beam or girder carrying Rt Aa S over Moreau Rvr in Cole 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,225 vehicles a day, roughly 11% of them trucks, projected to reach 1,960 by 2044. The structure is 254 ft (77.4 m) long and 28 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesRt Aa S
CrossesMoreau Rvr
LocationS 26 T 43 N R 14 W
RouteState Highway 0AA
Coordinates38.45142, -92.42035
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 alignment6: Equal to present minimum criteria
Operating rating26.8 US tons
Inventory rating14.9 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length254 ft (77.4 m)
Longest span100 ft (30.5 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,225 (2024)
Projected traffic1,960 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.5 million (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt Aa S over Moreau Rvr built?

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

What condition is Rt Aa S over Moreau Rvr in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does Rt Aa S over Moreau Rvr carry?

About 1,225 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt Aa S over Moreau Rvr?

The structure is 254 ft (77.4 m) long with a longest span of 100 ft (30.5 m) and a deck 28 ft wide.

Who owns Rt Aa S over Moreau Rvr?

It is owned by the State Highway Agency.