US Bridges

IRR E1870 (6930C) over Dry Creek

Good

Stephens County, Oklahoma · 4S 2W of Comanche · Structure no. 315920000000000

Built
2019
6 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
37
2022 count
Owner
County
County Highway Agency

About this bridge

IRR E1870 (6930C) over Dry Creek is a steel stringer/multi-beam or girder carrying IRR E1870 (6930C) over Dry Creek in Stephens County, Oklahoma. It was built in 2019, so it is 6 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 37 vehicles a day, roughly 10% of them trucks, projected to reach 59 by 2042. The structure is 75 ft (22.9 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesIRR E1870 (6930C)
CrossesDry Creek
Location4S 2W of Comanche
RouteCounty Highway E1870
Coordinates34.30409, -97.99985
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
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 alignment6: Equal to present minimum criteria
Operating rating52 US tons
Inventory rating31 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span75 ft (22.9 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2022)
Projected traffic59 by 2042
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was IRR E1870 (6930C) over Dry Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is IRR E1870 (6930C) over Dry Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does IRR E1870 (6930C) over Dry Creek carry?

About 37 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is IRR E1870 (6930C) over Dry Creek?

The structure is 75 ft (22.9 m) long with a longest span of 75 ft (22.9 m) and a deck 28 ft wide.

Who owns IRR E1870 (6930C) over Dry Creek?

It is owned by the County Highway Agency.