US Bridges

Swisher RD over Spring CR

Good

Adair County, Missouri · S 25 T 63 N R 17 W · Structure no. 28806

Built
2001
24 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
142 ft
3 main spans
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Swisher RD over Spring CR is a steel stringer/multi-beam or girder carrying Swisher RD over Spring CR in Adair County, Missouri. It was built in 2001, so it is 24 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 15 vehicles a day, roughly 10% of them trucks, projected to reach 17 by 2044. The structure is 142 ft (43.3 m) long and 16 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesSwisher RD
CrossesSpring CR
LocationS 25 T 63 N R 17 W
RouteCounty Highway 165
CountyAdair County
StateMissouri
Coordinates40.23952, -92.74532
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.7 US tons
Inventory rating24.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length142 ft (43.3 m)
Longest span72 ft (22 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2024)
Projected traffic17 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$656,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Swisher RD over Spring CR built?

It was built in 2001, making it 24 years old in 2025.

What condition is Swisher RD over Spring CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does Swisher RD over Spring CR carry?

About 15 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Swisher RD over Spring CR?

The structure is 142 ft (43.3 m) long with a longest span of 72 ft (22 m) and a deck 16 ft wide.

Who owns Swisher RD over Spring CR?

It is owned by the County Highway Agency.