US Bridges

County RD 385 over Grand Gulf CR

Good

Oregon County, Missouri · S 17 T 22 N R 6 W · Structure no. 18776

Built
1962
63 years old
Condition
Good
inspected January 2024
Type
Slab
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
25
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 385 over Grand Gulf CR is a concrete continuous slab carrying County RD 385 over Grand Gulf CR in Oregon County, Missouri. It was built in 1962, so it is 63 years old, older 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 30 by 2044. The structure is 24 ft (7.3 m) long and 23 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCounty RD 385
CrossesGrand Gulf CR
LocationS 17 T 22 N R 6 W
RouteCounty Highway 199
Coordinates36.5685, -91.6539
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 inspectionJanuary 2024
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 alignment6: Equal to present minimum criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length24 ft (7.3 m)
Longest span11 ft (3.4 m)
Deck width23 ft (7 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2024)
Projected traffic30 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 County RD 385 over Grand Gulf CR built?

It was built in 1962, making it 63 years old in 2025.

What condition is County RD 385 over Grand Gulf 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 January 2024.

How much traffic does County RD 385 over Grand Gulf CR carry?

About 25 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 385 over Grand Gulf CR?

The structure is 24 ft (7.3 m) long with a longest span of 11 ft (3.4 m) and a deck 23 ft wide.

Who owns County RD 385 over Grand Gulf CR?

It is owned by the County Highway Agency.