US Bridges

IRR N4601 (2134C) over Brush Creek; Lake Eucha

Fair

Delaware County, Oklahoma · 5.0 MI S of Jay · Structure no. 230980000000000

Built
1991
34 years old
Condition
Fair
inspected February 2023
Type
Tee Beam
Prestressed Concrete
Length
136 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

IRR N4601 (2134C) over Brush Creek; Lake Eucha is a prestressed concrete tee beam carrying IRR N4601 (2134C) over Brush Creek; Lake Eucha in Delaware County, Oklahoma. It was built in 1991, so it is 34 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 5 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 136 ft (41.5 m) long and 28 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesIRR N4601 (2134C)
CrossesBrush Creek; Lake Eucha
Location5.0 MI S of Jay
RouteCounty Highway 2134C
CountyDelaware County
StateOklahoma
Coordinates36.35563, -94.80751
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.8 US tons
Inventory rating34.6 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span45 ft (13.7 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$599,000
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR N4601 (2134C) over Brush Creek; Lake Eucha built?

It was built in 1991, making it 34 years old in 2025.

What condition is IRR N4601 (2134C) over Brush Creek; Lake Eucha 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 February 2023.

How much traffic does IRR N4601 (2134C) over Brush Creek; Lake Eucha carry?

About 100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is IRR N4601 (2134C) over Brush Creek; Lake Eucha?

The structure is 136 ft (41.5 m) long with a longest span of 45 ft (13.7 m) and a deck 28 ft wide.

Who owns IRR N4601 (2134C) over Brush Creek; Lake Eucha?

It is owned by the County Highway Agency.