US Bridges

W Spruce Avenue over Mill Run

Fair

Blair County, Pennsylvania · W Spruce Ave @ 31st Str. · Structure no. 000000000005995

Built
1980
45 years old, rebuilt 2016
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
30 ft
1 main span
Daily traffic
1,006
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

W Spruce Avenue over Mill Run is a prestressed concrete box beam or girders - multiple carrying W Spruce Avenue over Mill Run in Blair County, Pennsylvania. It was built in 1980 and reconstructed in 2016, so it is 45 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 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 1,006 vehicles a day, roughly 3% of them trucks, projected to reach 1,355 by 2044. The structure is 30 ft (9.1 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesW Spruce Avenue
CrossesMill Run
LocationW Spruce Ave @ 31st Str.
RouteCity Street 0
Coordinates40.50027, -78.42134
Functional classUrban 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
Deck7 GoodSome minor problems.
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.
Last inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span30 ft (9.1 m)
Deck width50 ft (15.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,006 (2024)
Projected traffic1,355 by 2044
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
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$645,000
NavigationNo navigation control on waterway

Frequently asked questions

When was W Spruce Avenue over Mill Run built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2016.

What condition is W Spruce Avenue over Mill 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 July 2024.

How much traffic does W Spruce Avenue over Mill Run carry?

About 1,006 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is W Spruce Avenue over Mill Run?

The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9.1 m) and a deck 50 ft wide.

Who owns W Spruce Avenue over Mill Run?

It is owned by the City or Municipal Highway Agency.