US Bridges

Eleventh Avenue Et over Blockhouse Run

PoorClosed to traffic

Beaver County, Pennsylvania · 423005 100 Yd /13 ST Int · Structure no. 000000000003905

Built
1925
100 years old
Condition
Poor
inspected April 2024
Type
Girder and Floorbeam System
Steel
Length
46 ft
1 main span
Daily traffic
—
2014 count
Owner
City
City or Municipal Highway Agency

About this bridge

Eleventh Avenue Et over Blockhouse Run is a steel girder and floorbeam system carrying Eleventh Avenue Et over Blockhouse Run in Beaver County, Pennsylvania. It was built in 1925, so it is 100 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 0 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: closed to all traffic.

No traffic count is recorded. The structure is 46 ft (14 m) long and 17 ft wide.

Location

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CarriesEleventh Avenue Et
CrossesBlockhouse Run
Location423005 100 Yd /13 ST Int
RouteCity Street 0
CountyBeaver County
StatePennsylvania
Coordinates40.73225, -80.30366
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure0 FailedOut of service and beyond corrective action.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being 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 rating0 US tons
Inventory rating0 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length46 ft (14 m)
Longest span41 ft (12.5 m)
Deck width17 ft (5.1 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$800,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Eleventh Avenue Et over Blockhouse Run built?

It was built in 1925, making it 100 years old in 2025.

What condition is Eleventh Avenue Et over Blockhouse Run 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 April 2024.

How much traffic does Eleventh Avenue Et over Blockhouse Run carry?

No traffic count is recorded for this structure.

How long is Eleventh Avenue Et over Blockhouse Run?

The structure is 46 ft (14 m) long with a longest span of 41 ft (12.5 m) and a deck 17 ft wide.

Who owns Eleventh Avenue Et over Blockhouse Run?

It is owned by the City or Municipal Highway Agency.