US Bridges

Rt W S over Unknown CR

Fair

Morgan County, Missouri · S 6 T 42 N R 17 W · Structure no. 8514

Built
1924
101 years old
Condition
Fair
inspected December 2023
Type
Culvert
Concrete
Length
21 ft
1 main span
Daily traffic
6,490
2024 count
Owner
State
State Highway Agency

About this bridge

Rt W S over Unknown CR is a concrete culvert carrying Rt W S over Unknown CR in Morgan 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 6,490 vehicles a day, roughly 11% of them trucks, projected to reach 12,007 by 2044. The structure is 21 ft (6.4 m) long and 24 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesRt W S
CrossesUnknown CR
LocationS 6 T 42 N R 17 W
RouteState Highway 0W
CountyMorgan County
StateMissouri
Coordinates38.43175, -92.84754
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
Channel and channel protection9 ExcellentNo problems noted.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.5 US tons
Inventory rating34.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 10
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,490 (2024)
Projected traffic12,007 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$306,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt W S over Unknown CR built?

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

What condition is Rt W S over Unknown 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 December 2023.

How much traffic does Rt W S over Unknown CR carry?

About 6,490 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt W S over Unknown CR?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns Rt W S over Unknown CR?

It is owned by the State Highway Agency.