US Bridges

T-852 White Oak DR over Toby Creek

FairPosted for load

Clarion County, Pennsylvania · 1.5 MI W Int W/ SR1005 · Structure no. 000000000011129

Built
1941
84 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
320
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-852 White Oak DR over Toby Creek is a steel stringer/multi-beam or girder carrying T-852 White Oak DR over Toby Creek in Clarion County, Pennsylvania. It was built in 1941, so it is 84 years old, older than the Pennsylvania average of 54.8 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 320 vehicles a day, roughly 9% of them trucks, projected to reach 450 by 2043. The structure is 48 ft (14.6 m) long and 25 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesT-852 White Oak DR
CrossesToby Creek
Location1.5 MI W Int W/ SR1005
RouteCity Street 0
Coordinates41.28595, -79.34517
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating29 US tons
Inventory rating22 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadH 20
Structure length48 ft (14.6 m)
Longest span45 ft (13.7 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic320 (2023)
Projected traffic450 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$296,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-852 White Oak DR over Toby Creek built?

It was built in 1941, making it 84 years old in 2025.

What condition is T-852 White Oak DR over Toby 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 May 2023.

How much traffic does T-852 White Oak DR over Toby Creek carry?

About 320 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is T-852 White Oak DR over Toby Creek?

The structure is 48 ft (14.6 m) long with a longest span of 45 ft (13.7 m) and a deck 25 ft wide.

Who owns T-852 White Oak DR over Toby Creek?

It is owned by the Town or Township Highway Agency.