US Bridges

1820C over Elm Branch Creek

FairPosted for load

Craig County, Oklahoma · 2.NW of Vinita · Structure no. 110840000000000

Built
1949
76 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
93 ft
3 main spans
Daily traffic
250
2022 count
Owner
County
County Highway Agency

About this bridge

1820C over Elm Branch Creek is a concrete stringer/multi-beam or girder carrying 1820C over Elm Branch Creek in Craig County, Oklahoma. It was built in 1949, so it is 76 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 250 vehicles a day, roughly 15% of them trucks, projected to reach 400 by 2042. The structure is 93 ft (28.2 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries1820C
CrossesElm Branch Creek
Location2.NW of Vinita
RouteCounty Highway 1820C
Coordinates36.65592, -95.18498
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.4 US tons
Inventory rating23.6 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length93 ft (28.2 m)
Longest span27 ft (8.2 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic400 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$488,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1820C over Elm Branch Creek built?

It was built in 1949, making it 76 years old in 2025.

What condition is 1820C over Elm Branch Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does 1820C over Elm Branch Creek carry?

About 250 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 1820C over Elm Branch Creek?

The structure is 93 ft (28.2 m) long with a longest span of 27 ft (8.2 m) and a deck 25 ft wide.

Who owns 1820C over Elm Branch Creek?

It is owned by the County Highway Agency.