US Bridges

Main ST (greentop) over Br of Salt CR

Fair

Schuyler County, Missouri · S 10 T 64 N R 15 W · Structure no. 20917

Built
1924
101 years old
Condition
Fair
inspected March 2024
Type
Tee Beam
Concrete
Length
42 ft
1 main span
Daily traffic
70
2024 count
Owner
County
County Highway Agency

About this bridge

Main ST (greentop) over Br of Salt CR is a concrete tee beam carrying Main ST (greentop) over Br of Salt CR in Schuyler County, Missouri. It was built in 1924, so it is 101 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.

It carries about 70 vehicles a day, roughly 10% of them trucks, projected to reach 77 by 2044. The structure is 42 ft (12.8 m) long and 23 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMain ST (greentop)
CrossesBr of Salt CR
LocationS 10 T 64 N R 15 W
RouteCounty Highway 280
CountySchuyler County
StateMissouri
Coordinates40.35931, -92.56464
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating47.6 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length42 ft (12.8 m)
Longest span41 ft (12.5 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2024)
Projected traffic77 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Main ST (greentop) over Br of Salt CR built?

It was built in 1924, making it 101 years old in 2025.

What condition is Main ST (greentop) over Br of Salt 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 March 2024.

How much traffic does Main ST (greentop) over Br of Salt CR carry?

About 70 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Main ST (greentop) over Br of Salt CR?

The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 23 ft wide.

Who owns Main ST (greentop) over Br of Salt CR?

It is owned by the County Highway Agency.