US Bridges

1620C over W Cache Creek

FairPosted for load

Comanche County, Oklahoma · 1.2 S .5 W of US 62 · Structure no. 038090000000000

Built
1932
93 years old
Condition
Fair
inspected October 2024
Type
Truss - Thru
Steel
Length
368 ft
4 main spans
Daily traffic
1,553
2022 count
Owner
County
County Highway Agency

About this bridge

1620C over W Cache Creek is a steel truss - thru carrying 1620C over W Cache Creek in Comanche County, Oklahoma. It was built in 1932, so it is 93 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 5 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 1,553 vehicles a day, roughly 15% of them trucks, projected to reach 2,485 by 2042. The structure is 368 ft (112.3 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries1620C
CrossesW Cache Creek
Location1.2 S .5 W of US 62
RouteCounty Highway 1620C
CountyComanche County
StateOklahoma
Coordinates34.62358, -98.64047
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.4 US tons
Inventory rating17 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length368 ft (112.3 m)
Longest span100 ft (30.5 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,553 (2022)
Projected traffic2,485 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$997,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1620C over W Cache Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is 1620C over W 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 October 2024.

How much traffic does 1620C over W Cache Creek carry?

About 1,553 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 1620C over W Cache Creek?

The structure is 368 ft (112.3 m) long with a longest span of 100 ft (30.5 m) and a deck 23 ft wide.

Who owns 1620C over W Cache Creek?

It is owned by the County Highway Agency.