US Bridges

Co. Rd. E1860 over I-35 under

FairPosted for load

Carter County, Oklahoma · 8.1 MI N JCT SH142 · Structure no. 175540000000000

Built
1969
56 years old
Condition
Fair
inspected January 2023
Type
Frame
Steel Continuous
Length
230 ft
2 main spans
Daily traffic
300
2022 count
Owner
State
State Highway Agency

About this bridge

Co. Rd. E1860 over I-35 under is a steel continuous frame carrying Co. Rd. E1860 over I-35 under in Carter County, Oklahoma. It was built in 1969, so it is 56 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 6 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 300 vehicles a day, roughly 15% of them trucks, projected to reach 480 by 2042. The structure is 230 ft (70.1 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCo. Rd. E1860
CrossesI-35 under
Location8.1 MI N JCT SH142
RouteCounty Highway E1860
CountyCarter County
StateOklahoma
Coordinates34.3182, -97.15658
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeFrame
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length230 ft (70.1 m)
Longest span114 ft (34.7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2022)
Projected traffic480 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$1.9 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Co. Rd. E1860 over I-35 under built?

It was built in 1969, making it 56 years old in 2025.

What condition is Co. Rd. E1860 over I-35 under 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 2023.

How much traffic does Co. Rd. E1860 over I-35 under carry?

About 300 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Co. Rd. E1860 over I-35 under?

The structure is 230 ft (70.1 m) long with a longest span of 114 ft (34.7 m) and a deck 33 ft wide.

Who owns Co. Rd. E1860 over I-35 under?

It is owned by the State Highway Agency.