US Bridges

Switchgrass RD over Br of Panther CR

Good

Webster County, Missouri · S 19 T 29 N R 18 W · Structure no. 33768

Built
2010
15 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete
Length
20 ft
1 main span
Daily traffic
35
2023 count
Owner
County
County Highway Agency

About this bridge

Switchgrass RD over Br of Panther CR is a concrete slab carrying Switchgrass RD over Br of Panther CR in Webster County, Missouri. It was built in 2010, so it is 15 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 58 by 2043. The structure is 20 ft (6.2 m) long and 26 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesSwitchgrass RD
CrossesBr of Panther CR
LocationS 19 T 29 N R 18 W
RouteCounty Highway 321
CountyWebster County
StateMissouri
Coordinates37.20335, -92.94471
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.3 US tons
Inventory rating51.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length20 ft (6.2 m)
Longest span20 ft (6.2 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic58 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Switchgrass RD over Br of Panther CR built?

It was built in 2010, making it 15 years old in 2025.

What condition is Switchgrass RD over Br of Panther 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 April 2023.

How much traffic does Switchgrass RD over Br of Panther CR carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Switchgrass RD over Br of Panther CR?

The structure is 20 ft (6.2 m) long with a longest span of 20 ft (6.2 m) and a deck 26 ft wide.

Who owns Switchgrass RD over Br of Panther CR?

It is owned by the County Highway Agency.