US Bridges

N3270 over Hickory Creek

Good

Carter County, Oklahoma · 2W&.4S of JCT US70&US77 · Structure no. 241600000000000

Built
1996
29 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
123 ft
3 main spans
Daily traffic
400
2022 count
Owner
County
County Highway Agency

About this bridge

N3270 over Hickory Creek is a prestressed concrete stringer/multi-beam or girder carrying N3270 over Hickory Creek in Carter County, Oklahoma. It was built in 1996, so it is 29 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 400 vehicles a day, roughly 10% of them trucks, projected to reach 640 by 2042. The structure is 123 ft (37.5 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesN3270
CrossesHickory Creek
Location2W&.4S of JCT US70&US77
RouteCounty Highway N3270
Coordinates34.1339, -97.17822
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating75.1 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length123 ft (37.5 m)
Longest span40 ft (12.2 m)
Deck width34 ft (10.5 m)
Roadway width33 ft (10 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic640 by 2042
Trucks10%
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$568,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3270 over Hickory Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is N3270 over Hickory 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 March 2023.

How much traffic does N3270 over Hickory Creek carry?

About 400 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3270 over Hickory Creek?

The structure is 123 ft (37.5 m) long with a longest span of 40 ft (12.2 m) and a deck 34 ft wide.

Who owns N3270 over Hickory Creek?

It is owned by the County Highway Agency.