US Bridges

Danley Bridge T379 over Robinson Fork

PoorPosted for load

Washington County, Pennsylvania · 200 from SR 3025 · Structure no. 000000000035354

Built
1887
138 years old
Condition
Poor
inspected September 2023
Type
Truss - Thru
Wood or Timber
Length
49 ft
1 main span
Daily traffic
20
1990 count
Owner
County
County Highway Agency

About this bridge

Danley Bridge T379 over Robinson Fork is a wood or timber truss - thru carrying Danley Bridge T379 over Robinson Fork in Washington County, Pennsylvania. It was built in 1887, so it is 138 years old, older than the Pennsylvania average of 54.8 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 20 vehicles a day, projected to reach 20 by 2010. The structure is 49 ft (14.9 m) long and 12 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesDanley Bridge T379
CrossesRobinson Fork
Location200 from SR 3025
RouteCity Street 0T379
CountyWashington County
StatePennsylvania
Coordinates40.05511, -80.4395
Functional classRural Minor Arterial

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating20 US tons
Inventory rating13 US tons

Structure

Structure typeTruss - Thru
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span43 ft (13.1 m)
Deck width12 ft (3.6 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deck9 ft (2.7 m)

Traffic and service

Average daily traffic20 (1990)
Projected traffic20 by 2010
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$82,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Danley Bridge T379 over Robinson Fork built?

It was built in 1887, making it 138 years old in 2025.

What condition is Danley Bridge T379 over Robinson Fork 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 September 2023.

How much traffic does Danley Bridge T379 over Robinson Fork carry?

About 20 vehicles per day (1990 count).

How long is Danley Bridge T379 over Robinson Fork?

The structure is 49 ft (14.9 m) long with a longest span of 43 ft (13.1 m) and a deck 12 ft wide.

Who owns Danley Bridge T379 over Robinson Fork?

It is owned by the County Highway Agency.