US Bridges

IRR N2770 over Buggy Creek Trib.

GoodPosted for load

Grady County, Oklahoma · 6.8W .8S JCT SH152/US81 · Structure no. 316110000000000

Built
2018
7 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

IRR N2770 over Buggy Creek Trib. is a concrete culvert carrying IRR N2770 over Buggy Creek Trib. in Grady County, Oklahoma. It was built in 2018, so it is 7 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 28 ft (8.5 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesIRR N2770
CrossesBuggy Creek Trib.
Location6.8W .8S JCT SH152/US81
RouteCounty Highway N2770
Coordinates35.32296, -98.06074
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating57 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span14 ft (4.3 m)
Deck width47 ft (14.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 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 proposedNone recorded
Estimated improvement cost$225,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was IRR N2770 over Buggy Creek Trib. built?

It was built in 2018, making it 7 years old in 2025.

What condition is IRR N2770 over Buggy Creek Trib. 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 September 2024.

How much traffic does IRR N2770 over Buggy Creek Trib. carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is IRR N2770 over Buggy Creek Trib.?

The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.3 m) and a deck 47 ft wide.

Who owns IRR N2770 over Buggy Creek Trib.?

It is owned by the County Highway Agency.