US Bridges

N1750 over West Red Bluff Creek

Fair

Ellis County, Oklahoma · 6.3W .3S of Arnett · Structure no. 104400000000000

Built
1946
79 years old, rebuilt 1973
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
63
2022 count
Owner
County
County Highway Agency

About this bridge

N1750 over West Red Bluff Creek is a concrete culvert carrying N1750 over West Red Bluff Creek in Ellis County, Oklahoma. It was built in 1946 and reconstructed in 1973, so it is 79 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.

It carries about 63 vehicles a day, roughly 15% of them trucks, projected to reach 101 by 2042. The structure is 33 ft (10.1 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN1750
CrossesWest Red Bluff Creek
Location6.3W .3S of Arnett
RouteCounty Highway N1750
Coordinates36.13095, -99.88155
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 m)
Longest span10 ft (3 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic63 (2022)
Projected traffic101 by 2042
Trucks15%
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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N1750 over West Red Bluff Creek built?

It was built in 1946, making it 79 years old in 2025. It was reconstructed in 1973.

What condition is N1750 over West Red Bluff 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 April 2023.

How much traffic does N1750 over West Red Bluff Creek carry?

About 63 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N1750 over West Red Bluff Creek?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m) and a deck 42 ft wide.

Who owns N1750 over West Red Bluff Creek?

It is owned by the County Highway Agency.