US Bridges

Shibley RD over Br of Shethigh CR

Good

Adair County, Missouri · S 21 T 64 N R 17 W · Structure no. 30550

Built
2004
21 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
50 ft
1 main span
Daily traffic
15
2024 count
Owner
County
County Highway Agency

About this bridge

Shibley RD over Br of Shethigh CR is a steel stringer/multi-beam or girder carrying Shibley RD over Br of Shethigh CR in Adair County, Missouri. It was built in 2004, so it is 21 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 50 ft (15.2 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesShibley RD
CrossesBr of Shethigh CR
LocationS 21 T 64 N R 17 W
RouteCounty Highway 9
CountyAdair County
StateMissouri
Coordinates40.33874, -92.80089
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 protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51.6 US tons
Inventory rating30.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 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 closed5 mi (8 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 Shibley RD over Br of Shethigh CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is Shibley RD over Br of Shethigh 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 Shibley RD over Br of Shethigh CR carry?

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

How long is Shibley RD over Br of Shethigh CR?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 16 ft wide.

Who owns Shibley RD over Br of Shethigh CR?

It is owned by the County Highway Agency.