US Bridges

D3705 over Pawhuska Lake

Fair

Osage County, Oklahoma · 3SW of Pawhuska · Structure no. 049760000000000

Built
1936
89 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
87 ft
8 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

D3705 over Pawhuska Lake is a concrete culvert carrying D3705 over Pawhuska Lake in Osage County, Oklahoma. It was built in 1936, so it is 89 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2042. The structure is 87 ft (26.5 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesD3705
CrossesPawhuska Lake
Location3SW of Pawhuska
RouteCounty Highway D3705
CountyOsage County
StateOklahoma
Coordinates36.6453, -96.39279
Functional classRural Local

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.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length87 ft (26.5 m)
Longest span10 ft (3 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic40 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was D3705 over Pawhuska Lake built?

It was built in 1936, making it 89 years old in 2025.

What condition is D3705 over Pawhuska Lake 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 April 2024.

How much traffic does D3705 over Pawhuska Lake carry?

About 25 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is D3705 over Pawhuska Lake?

The structure is 87 ft (26.5 m) long with a longest span of 10 ft (3 m) and a deck 22 ft wide.

Who owns D3705 over Pawhuska Lake?

It is owned by the County Highway Agency.