US Bridges

5470C over Philadelphia Creek

Fair

Okfuskee County, Oklahoma · 5.9 N 5.E Okemah · Structure no. 139510000000000

Built
1958
67 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
160
2022 count
Owner
County
County Highway Agency

About this bridge

5470C over Philadelphia Creek is a concrete culvert carrying 5470C over Philadelphia Creek in Okfuskee County, Oklahoma. It was built in 1958, so it is 67 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 160 vehicles a day, roughly 15% of them trucks, projected to reach 256 by 2042. The structure is 28 ft (8.5 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
Carries5470C
CrossesPhiladelphia Creek
Location5.9 N 5.E Okemah
RouteCounty Highway 5470C
CountyOkfuskee County
StateOklahoma
Coordinates35.47671, -96.21154
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span14 ft (4.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2022)
Projected traffic256 by 2042
Trucks15%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 5470C over Philadelphia Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is 5470C over Philadelphia Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does 5470C over Philadelphia Creek carry?

About 160 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 5470C over Philadelphia Creek?

The structure is 28 ft (8.5 m) long with a longest span of 14 ft (4.3 m) and a deck 30 ft wide.

Who owns 5470C over Philadelphia Creek?

It is owned by the County Highway Agency.