US Bridges

Orchid DR over Osage Fk

Fair

Laclede County, Missouri · S 16 T 32 N R 16 W · Structure no. 21342

Built
1945
80 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete Continuous
Length
97 ft
8 main spans
Daily traffic
30
2023 count
Owner
County
County Highway Agency

About this bridge

Orchid DR over Osage Fk is a concrete continuous slab carrying Orchid DR over Osage Fk in Laclede County, Missouri. It was built in 1945, so it is 80 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 30 vehicles a day, roughly 5% of them trucks, projected to reach 42 by 2043. The structure is 97 ft (29.6 m) long and 12 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesOrchid DR
CrossesOsage Fk
LocationS 16 T 32 N R 16 W
RouteCounty Highway 301
CountyLaclede County
StateMissouri
Coordinates37.48463, -92.68692
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans8
Design loadOther
Structure length97 ft (29.6 m)
Longest span13 ft (4 m)
Deck width12 ft (3.6 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2023)
Projected traffic42 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$710,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Orchid DR over Osage Fk built?

It was built in 1945, making it 80 years old in 2025.

What condition is Orchid DR over Osage Fk 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 2023.

How much traffic does Orchid DR over Osage Fk carry?

About 30 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Orchid DR over Osage Fk?

The structure is 97 ft (29.6 m) long with a longest span of 13 ft (4 m) and a deck 12 ft wide.

Who owns Orchid DR over Osage Fk?

It is owned by the County Highway Agency.