US Bridges

Mountain Drive over Browns Run

Fair

Cambria County, Pennsylvania · Mountain DR N Cambri Boro · Structure no. 000000000008813

Built
1978
47 years old
Condition
Fair
inspected April 2023
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
410
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mountain Drive over Browns Run is a concrete slab carrying Mountain Drive over Browns Run in Cambria County, Pennsylvania. It was built in 1978, so it is 47 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 6 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 410 vehicles a day, projected to reach 526 by 2043. The structure is 22 ft (6.7 m) long and 29 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMountain Drive
CrossesBrowns Run
LocationMountain DR N Cambri Boro
RouteCity Street 0
CountyCambria County
StatePennsylvania
Coordinates40.64365, -78.7825
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2023)
Projected traffic526 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Mountain Drive over Browns Run built?

It was built in 1978, making it 47 years old in 2025.

What condition is Mountain Drive over Browns 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 April 2023.

How much traffic does Mountain Drive over Browns Run carry?

About 410 vehicles per day (2023 count).

How long is Mountain Drive over Browns Run?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 29 ft wide.

Who owns Mountain Drive over Browns Run?

It is owned by the City or Municipal Highway Agency.