US Bridges

1690C over West Cache Creek

Fair

Comanche County, Oklahoma · 3.2 S .9 E of US 62 · Structure no. 195050000000000

Built
1978
47 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
363 ft
6 main spans
Daily traffic
345
2022 count
Owner
County
County Highway Agency

About this bridge

1690C over West Cache Creek is a prestressed concrete stringer/multi-beam or girder carrying 1690C over West Cache Creek in Comanche County, Oklahoma. It was built in 1978, so it is 47 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 345 vehicles a day, roughly 15% of them trucks, projected to reach 552 by 2042. The structure is 363 ft (110.6 m) long and 35 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
Carries1690C
CrossesWest Cache Creek
Location3.2 S .9 E of US 62
RouteCounty Highway 1605
CountyComanche County
StateOklahoma
Coordinates34.59445, -98.61586
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length363 ft (110.6 m)
Longest span60 ft (18.3 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic345 (2022)
Projected traffic552 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$988,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1690C over West Cache Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is 1690C over West Cache 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 August 2023.

How much traffic does 1690C over West Cache Creek carry?

About 345 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 1690C over West Cache Creek?

The structure is 363 ft (110.6 m) long with a longest span of 60 ft (18.3 m) and a deck 35 ft wide.

Who owns 1690C over West Cache Creek?

It is owned by the County Highway Agency.