US Bridges

Co. Rd. N4200 over Inola Creek

Fair

Wagoner County, Oklahoma · 7 MI S/O Inola Ok · Structure no. CEPSWTOKNEWTGRA

Built
1966
59 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
132 ft
3 main spans
Daily traffic
190
2021 count
Owner
Federal
Corps of Engineers (Civil)

About this bridge

Co. Rd. N4200 over Inola Creek is a steel stringer/multi-beam or girder carrying Co. Rd. N4200 over Inola Creek in Wagoner County, Oklahoma. It was built in 1966, so it is 59 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.

It carries about 190 vehicles a day, roughly 15% of them trucks, projected to reach 100 by 2043. The structure is 132 ft (40.2 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCo. Rd. N4200
CrossesInola Creek
Location7 MI S/O Inola Ok
RouteCounty Highway N4200
CountyWagoner County
StateOklahoma
Coordinates36.07277, -95.52953
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length132 ft (40.2 m)
Longest span42 ft (12.9 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic190 (2021)
Projected traffic100 by 2043
Trucks15%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCorps of Engineers (Civil)
Maintained byCorps of Engineers (Civil)
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$863,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Co. Rd. N4200 over Inola Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is Co. Rd. N4200 over Inola 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 March 2023.

How much traffic does Co. Rd. N4200 over Inola Creek carry?

About 190 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Co. Rd. N4200 over Inola Creek?

The structure is 132 ft (40.2 m) long with a longest span of 42 ft (12.9 m) and a deck 27 ft wide.

Who owns Co. Rd. N4200 over Inola Creek?

It is owned by the Corps of Engineers (Civil).