US Bridges

Mcmillen Street over Solomon Run

Fair

Cambria County, Pennsylvania · Mcmillen St. Johnstown · Structure no. 000000000008778

Built
1980
45 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
656
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mcmillen Street over Solomon Run is a prestressed concrete box beam or girders - multiple carrying Mcmillen Street over Solomon Run in Cambria County, Pennsylvania. It was built in 1980, 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 656 vehicles a day, roughly 10% of them trucks, projected to reach 841 by 2043. The structure is 32 ft (9.8 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMcmillen Street
CrossesSolomon Run
LocationMcmillen St. Johnstown
RouteCity Street 0
Coordinates40.30843, -78.90802
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 protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating23 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width38 ft (11.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic656 (2023)
Projected traffic841 by 2043
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mcmillen Street over Solomon Run built?

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

What condition is Mcmillen Street over Solomon 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 November 2023.

How much traffic does Mcmillen Street over Solomon Run carry?

About 656 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Mcmillen Street over Solomon Run?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 38 ft wide.

Who owns Mcmillen Street over Solomon Run?

It is owned by the City or Municipal Highway Agency.