US Bridges

County RD 1451 over Sac Rvr Br

FairPosted for load

Cedar County, Missouri · S 21 T 35 N R 26 W · Structure no. 29624

Built
1950
75 years old, rebuilt 2002
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
75
2023 count
Owner
County
County Highway Agency

About this bridge

County RD 1451 over Sac Rvr Br is a steel stringer/multi-beam or girder carrying County RD 1451 over Sac Rvr Br in Cedar County, Missouri. It was built in 1950 and reconstructed in 2002, so it is 75 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. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, roughly 10% of them trucks, projected to reach 94 by 2043. The structure is 30 ft (9.1 m) long and 17 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCounty RD 1451
CrossesSac Rvr Br
LocationS 21 T 35 N R 26 W
RouteCounty Highway 451
Coordinates37.78951, -93.80508
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.8 US tons
Inventory rating18.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width17 ft (5.1 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2023)
Projected traffic94 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$196,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD 1451 over Sac Rvr Br built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 2002.

What condition is County RD 1451 over Sac Rvr Br 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 2024.

How much traffic does County RD 1451 over Sac Rvr Br carry?

About 75 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is County RD 1451 over Sac Rvr Br?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 17 ft wide.

Who owns County RD 1451 over Sac Rvr Br?

It is owned by the County Highway Agency.