US Bridges

IRR E1770 (1748C) over East Cache Oflow

Fair

Cotton County, Oklahoma · 6N 1.4W of JCT SH53/SH5 · Structure no. 308850000000000

Built
2015
10 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

IRR E1770 (1748C) over East Cache Oflow is a prestressed concrete stringer/multi-beam or girder carrying IRR E1770 (1748C) over East Cache Oflow in Cotton County, Oklahoma. It was built in 2015, so it is 10 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 60 ft (18.3 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesIRR E1770 (1748C)
CrossesEast Cache Oflow
Location6N 1.4W of JCT SH53/SH5
RouteCounty Highway E1770
CountyCotton County
StateOklahoma
Coordinates34.44893, -98.34177
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.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length60 ft (18.3 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 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 closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR E1770 (1748C) over East Cache Oflow built?

It was built in 2015, making it 10 years old in 2025.

What condition is IRR E1770 (1748C) over East Cache Oflow 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 June 2023.

How much traffic does IRR E1770 (1748C) over East Cache Oflow carry?

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

How long is IRR E1770 (1748C) over East Cache Oflow?

The structure is 60 ft (18.3 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns IRR E1770 (1748C) over East Cache Oflow?

It is owned by the County Highway Agency.