US Bridges

N4670 (fas 2133) over Spavinaw Creek

FairPosted for load

Delaware County, Oklahoma · 4N of Colcord · Structure no. 109540000000000

Built
1948
77 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
261 ft
6 main spans
Daily traffic
400
2022 count
Owner
County
County Highway Agency

About this bridge

N4670 (fas 2133) over Spavinaw Creek is a concrete stringer/multi-beam or girder carrying N4670 (fas 2133) over Spavinaw Creek in Delaware County, Oklahoma. It was built in 1948, so it is 77 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, roughly 15% of them trucks, projected to reach 640 by 2042. The structure is 261 ft (79.6 m) long and 25 ft wide. If it were closed, the detour would be 20.5 mi (33 km).

Location

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CarriesN4670 (fas 2133)
CrossesSpavinaw Creek
Location4N of Colcord
RouteCounty Highway N4670
CountyDelaware County
StateOklahoma
Coordinates36.32343, -94.68499
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating28.7 US tons
Inventory rating17.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length261 ft (79.6 m)
Longest span50 ft (15.2 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic640 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 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$827,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4670 (fas 2133) over Spavinaw Creek built?

It was built in 1948, making it 77 years old in 2025.

What condition is N4670 (fas 2133) over Spavinaw 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 February 2023.

How much traffic does N4670 (fas 2133) over Spavinaw Creek carry?

About 400 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N4670 (fas 2133) over Spavinaw Creek?

The structure is 261 ft (79.6 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.

Who owns N4670 (fas 2133) over Spavinaw Creek?

It is owned by the County Highway Agency.