US Bridges

Flat Armadillo RD over Willow Creek

Good

Cleveland County, Oklahoma · .3W 96th Ave SE · Structure no. 258210000000000

Built
2004
21 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
102 ft
1 main span
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

Flat Armadillo RD over Willow Creek is a concrete stringer/multi-beam or girder carrying Flat Armadillo RD over Willow Creek in Cleveland County, Oklahoma. It was built in 2004, so it is 21 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.

It carries about 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 102 ft (31.2 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesFlat Armadillo RD
CrossesWillow Creek
Location.3W 96th Ave SE
RouteCounty Highway 1440C
Coordinates34.98578, -97.30555
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating47.8 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length102 ft (31.2 m)
Longest span100 ft (30.5 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 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$1.9 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Flat Armadillo RD over Willow Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Flat Armadillo RD over Willow 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 November 2023.

How much traffic does Flat Armadillo RD over Willow Creek carry?

About 100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Flat Armadillo RD over Willow Creek?

The structure is 102 ft (31.2 m) long with a longest span of 100 ft (30.5 m) and a deck 29 ft wide.

Who owns Flat Armadillo RD over Willow Creek?

It is owned by the County Highway Agency.