US Bridges

Stahl RD over Spring Creek

Fair

Adair County, Missouri · S 10 T 63 N R 17 W · Structure no. 18050

Built
1981
44 years old
Condition
Fair
inspected February 2024
Type
Tee Beam
Prestressed Concrete Continuous
Length
135 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

Stahl RD over Spring Creek is a prestressed concrete continuous tee beam carrying Stahl RD over Spring Creek in Adair County, Missouri. It was built in 1981, so it is 44 years old, younger 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 22 by 2044. The structure is 135 ft (41.1 m) long and 17 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesStahl RD
CrossesSpring Creek
LocationS 10 T 63 N R 17 W
RouteCounty Highway 171
CountyAdair County
StateMissouri
Coordinates40.28389, -92.79192
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no 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 geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating42.7 US tons
Inventory rating23.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 20
Structure length135 ft (41.1 m)
Longest span45 ft (13.7 m)
Deck width17 ft (5.1 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic22 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Stahl RD over Spring Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Stahl RD over Spring Creek 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 February 2024.

How much traffic does Stahl RD over Spring Creek carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Stahl RD over Spring Creek?

The structure is 135 ft (41.1 m) long with a longest span of 45 ft (13.7 m) and a deck 17 ft wide.

Who owns Stahl RD over Spring Creek?

It is owned by the County Highway Agency.