US Bridges

D1378 RD over Rock Creek

Good

Latimer County, Oklahoma · 1.6 W; 0.8 N Lodi · Structure no. 291050000000000

Built
2008
17 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

D1378 RD over Rock Creek is a prestressed concrete tee beam carrying D1378 RD over Rock Creek in Latimer County, Oklahoma. It was built in 2008, so it is 17 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, roughly 10% of them trucks, projected to reach 240 by 2042. The structure is 165 ft (50.4 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesD1378 RD
CrossesRock Creek
Location1.6 W; 0.8 N Lodi
RouteCounty Highway E1377
Coordinates35.01861, -95.06
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating38 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length165 ft (50.4 m)
Longest span55 ft (16.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic240 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$555,000
NavigationNo navigation control on waterway

Frequently asked questions

When was D1378 RD over Rock Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is D1378 RD over Rock Creek 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 July 2024.

How much traffic does D1378 RD over Rock Creek carry?

About 150 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is D1378 RD over Rock Creek?

The structure is 165 ft (50.4 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.

Who owns D1378 RD over Rock Creek?

It is owned by the County Highway Agency.