US Bridges

Broughton Library over Lick Run

Fair

Allegheny County, Pennsylvania · 1 1/2 Miles West of SR 51 · Structure no. 000000000001555

Built
1920
105 years old, rebuilt 1950
Condition
Fair
inspected March 2024
Type
Arch - Deck
Masonry
Length
24 ft
1 main span
Daily traffic
28,309
2024 count
Owner
State
State Highway Agency

About this bridge

Broughton Library over Lick Run is a masonry arch - deck carrying Broughton Library over Lick Run in Allegheny County, Pennsylvania. It was built in 1920 and reconstructed in 1950, so it is 105 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.

It carries about 28,309 vehicles a day, roughly 3% of them trucks, projected to reach 31,784 by 2032. The structure is 24 ft (7.3 m) long and 59 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesBroughton Library
CrossesLick Run
Location1 1/2 Miles West of SR 51
RouteState Highway 0
CountyAllegheny County
StatePennsylvania
Coordinates40.33107, -79.98671
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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.
Culvert7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans1
Design loadHS 20
Structure length24 ft (7.3 m)
Longest span20 ft (6.1 m)
Deck width59 ft (18.1 m)
Roadway width41 ft (12.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28,309 (2024)
Projected traffic31,784 by 2032
Trucks3%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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$201,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Broughton Library over Lick Run built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1950.

What condition is Broughton Library over Lick 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 March 2024.

How much traffic does Broughton Library over Lick Run carry?

About 28,309 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Broughton Library over Lick Run?

The structure is 24 ft (7.3 m) long with a longest span of 20 ft (6.1 m) and a deck 59 ft wide.

Who owns Broughton Library over Lick Run?

It is owned by the State Highway Agency.