US Bridges

E0550 over Flint Creek

Good

Delaware County, Oklahoma · 3. MI NW Siloam Spring · Structure no. 245470000000000

Built
1993
32 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
257 ft
3 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

E0550 over Flint Creek is a prestressed concrete stringer/multi-beam or girder carrying E0550 over Flint Creek in Delaware County, Oklahoma. It was built in 1993, so it is 32 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 257 ft (78.3 m) long and 29 ft wide. If it were closed, the detour would be 12.4 mi (20 km).

CarriesE0550
CrossesFlint Creek
Location3. MI NW Siloam Spring
RouteCounty Highway E0550
Coordinates36.21695, -94.60217
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating109 US tons
Inventory rating51.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span85 ft (25.9 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 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 closed12.4 mi (20 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$821,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E0550 over Flint Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is E0550 over Flint 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 January 2023.

How much traffic does E0550 over Flint Creek carry?

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

How long is E0550 over Flint Creek?

The structure is 257 ft (78.3 m) long with a longest span of 85 ft (25.9 m) and a deck 29 ft wide.

Who owns E0550 over Flint Creek?

It is owned by the County Highway Agency.