US Bridges

E1470 over Little Washita Riv Trib.

Fair

Caddo County, Oklahoma · 1.0S;2.1W U.S.277/S.H.19 · Structure no. 285660000000000

Built
2008
17 years old
Condition
Fair
inspected January 2024
Type
Culvert
Concrete
Length
29 ft
2 main spans
Daily traffic
120
2022 count
Owner
County
County Highway Agency

About this bridge

E1470 over Little Washita Riv Trib. is a concrete culvert carrying E1470 over Little Washita Riv Trib. in Caddo 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 120 vehicles a day, roughly 10% of them trucks, projected to reach 192 by 2042. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesE1470
CrossesLittle Washita Riv Trib.
Location1.0S;2.1W U.S.277/S.H.19
RouteCounty Highway E1470
CountyCaddo County
StateOklahoma
Coordinates34.88417, -98.2375
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span14 ft (4.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic192 by 2042
Trucks10%
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$555,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E1470 over Little Washita Riv Trib. built?

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

What condition is E1470 over Little Washita Riv Trib. 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 January 2024.

How much traffic does E1470 over Little Washita Riv Trib. carry?

About 120 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is E1470 over Little Washita Riv Trib.?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.4 m).

Who owns E1470 over Little Washita Riv Trib.?

It is owned by the County Highway Agency.