US Bridges

T-847 (tobin Road) over Over Boles Run

Fair

Crawford County, Pennsylvania · .5 MI S SR 1006 · Structure no. 000000000013500

Built
1972
53 years old
Condition
Fair
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
51 ft
1 main span
Daily traffic
250
2024 count
Owner
County
County Highway Agency

About this bridge

T-847 (tobin Road) over Over Boles Run is a prestressed concrete box beam or girders - multiple carrying T-847 (tobin Road) over Over Boles Run in Crawford County, Pennsylvania. It was built in 1972, so it is 53 years old, younger 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 6 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 250 vehicles a day, roughly 1% of them trucks, projected to reach 350 by 2044. The structure is 51 ft (15.5 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesT-847 (tobin Road)
CrossesOver Boles Run
Location.5 MI S SR 1006
RouteCity Street 7229
CountyCrawford County
StatePennsylvania
Coordinates41.80557, -80.09923
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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating24 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length51 ft (15.5 m)
Longest span50 ft (15.2 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2024)
Projected traffic350 by 2044
Trucks1%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$704,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-847 (tobin Road) over Over Boles Run built?

It was built in 1972, making it 53 years old in 2025.

What condition is T-847 (tobin Road) over Over Boles Run 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 T-847 (tobin Road) over Over Boles Run carry?

About 250 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is T-847 (tobin Road) over Over Boles Run?

The structure is 51 ft (15.5 m) long with a longest span of 50 ft (15.2 m) and a deck 34 ft wide.

Who owns T-847 (tobin Road) over Over Boles Run?

It is owned by the County Highway Agency.