US Bridges

N3896 (72nd W Ave) over Bigheart Creek

PoorPosted for load

Tulsa County, Oklahoma · 72nd W Ave 1BLK S Cameron · Structure no. 009090000000000

Built
1920
105 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
47 ft
2 main spans
Daily traffic
2,144
2024 count
Owner
County
County Highway Agency

About this bridge

N3896 (72nd W Ave) over Bigheart Creek is a steel stringer/multi-beam or girder carrying N3896 (72nd W Ave) over Bigheart Creek in Tulsa County, Oklahoma. It was built in 1920, so it is 105 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,144 vehicles a day, roughly 10% of them trucks, projected to reach 3,431 by 2044. The structure is 47 ft (14.3 m) long and 15 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesN3896 (72nd W Ave)
CrossesBigheart Creek
Location72nd W Ave 1BLK S Cameron
RouteCounty Highway N3896
CountyTulsa County
StateOklahoma
Coordinates36.15802, -96.07157
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating15 US tons
Inventory rating9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans2
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span20 ft (6.1 m)
Deck width15 ft (4.5 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,144 (2024)
Projected traffic3,431 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3896 (72nd W Ave) over Bigheart Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is N3896 (72nd W Ave) over Bigheart Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does N3896 (72nd W Ave) over Bigheart Creek carry?

About 2,144 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is N3896 (72nd W Ave) over Bigheart Creek?

The structure is 47 ft (14.3 m) long with a longest span of 20 ft (6.1 m) and a deck 15 ft wide.

Who owns N3896 (72nd W Ave) over Bigheart Creek?

It is owned by the County Highway Agency.