US Bridges

N2730 over Cottonwood Creek

Good

Comanche County, Oklahoma · 1S 3E of JCT SH17/SH65 · Structure no. 279330000000000

Built
2006
19 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
90 ft
1 main span
Daily traffic
120
2022 count
Owner
County
County Highway Agency

About this bridge

N2730 over Cottonwood Creek is a prestressed concrete stringer/multi-beam or girder carrying N2730 over Cottonwood Creek in Comanche County, Oklahoma. It was built in 2006, so it is 19 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 120 vehicles a day, roughly 15% of them trucks, projected to reach 192 by 2042. The structure is 90 ft (27.4 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesN2730
CrossesCottonwood Creek
Location1S 3E of JCT SH17/SH65
RouteCounty Highway N2730
CountyComanche County
StateOklahoma
Coordinates34.73852, -98.12424
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating49.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span90 ft (27.4 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic192 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$534,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2730 over Cottonwood Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is N2730 over Cottonwood 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 August 2023.

How much traffic does N2730 over Cottonwood Creek carry?

About 120 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N2730 over Cottonwood Creek?

The structure is 90 ft (27.4 m) long with a longest span of 90 ft (27.4 m) and a deck 29 ft wide.

Who owns N2730 over Cottonwood Creek?

It is owned by the County Highway Agency.