US Bridges

I-99 / US 220 Nbl over Pa 36

Fair

Blair County, Pennsylvania · Village of Lakemont · Structure no. 000000000005599

Built
1985
40 years old, rebuilt 2009
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
212 ft
1 main span
Daily traffic
17,022
2024 count
Owner
State
State Highway Agency

About this bridge

I-99 / US 220 Nbl over Pa 36 is a prestressed concrete stringer/multi-beam or girder carrying I-99 / US 220 Nbl over Pa 36 in Blair County, Pennsylvania. It was built in 1985 and reconstructed in 2009, so it is 40 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 17,022 vehicles a day, roughly 11% of them trucks, projected to reach 20,767 by 2032. The structure is 212 ft (64.6 m) long and 48 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesI-99 / US 220 Nbl
CrossesPa 36
LocationVillage of Lakemont
RouteInterstate 99
CountyBlair County
StatePennsylvania
Coordinates40.47024, -78.39911
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 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
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length212 ft (64.6 m)
Longest span119 ft (36.3 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,022 (2024)
Projected traffic20,767 by 2032
Trucks11%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-99 / US 220 Nbl over Pa 36 built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 2009.

What condition is I-99 / US 220 Nbl over Pa 36 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 I-99 / US 220 Nbl over Pa 36 carry?

About 17,022 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is I-99 / US 220 Nbl over Pa 36?

The structure is 212 ft (64.6 m) long with a longest span of 119 ft (36.3 m) and a deck 48 ft wide.

Who owns I-99 / US 220 Nbl over Pa 36?

It is owned by the State Highway Agency.