US Bridges

Abbott RD over Trib to S Moreau C

PoorPosted for load

Miller County, Missouri · S 3 T 42 N R 15 W · Structure no. 12398

Built
1930
95 years old
Condition
Poor
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
Daily traffic
25
2023 count
Owner
County
County Highway Agency

About this bridge

Abbott RD over Trib to S Moreau C is a steel stringer/multi-beam or girder carrying Abbott RD over Trib to S Moreau C in Miller County, Missouri. It was built in 1930, so it is 95 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 4 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 43 by 2043. The structure is 32 ft (9.8 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesAbbott RD
CrossesTrib to S Moreau C
LocationS 3 T 42 N R 15 W
RouteCounty Highway 9
Coordinates38.42017, -92.56714
Functional classRural Local

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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.9 US tons
Inventory rating4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length32 ft (9.8 m)
Longest span30 ft (9.1 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic43 by 2043
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$311,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Abbott RD over Trib to S Moreau C built?

It was built in 1930, making it 95 years old in 2025.

What condition is Abbott RD over Trib to S Moreau C 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 January 2025.

How much traffic does Abbott RD over Trib to S Moreau C carry?

About 25 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Abbott RD over Trib to S Moreau C?

The structure is 32 ft (9.8 m) long with a longest span of 30 ft (9.1 m) and a deck 16 ft wide.

Who owns Abbott RD over Trib to S Moreau C?

It is owned by the County Highway Agency.