US Bridges

I-99 / US 220 Nbl over US 22 Boro ST Abandon RR

Fair

Blair County, Pennsylvania · Duncansville · Structure no. 000000000005584

Built
1981
44 years old, rebuilt 2013
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
342 ft
5 main spans
Daily traffic
8,640
2023 count
Owner
State
State Highway Agency

About this bridge

I-99 / US 220 Nbl over US 22 Boro ST Abandon RR is a prestressed concrete stringer/multi-beam or girder carrying I-99 / US 220 Nbl over US 22 Boro ST Abandon RR in Blair County, Pennsylvania. It was built in 1981 and reconstructed in 2013, so it is 44 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 8,640 vehicles a day, roughly 15% of them trucks, projected to reach 12,358 by 2032. The structure is 342 ft (104.2 m) long and 46 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI-99 / US 220 Nbl
CrossesUS 22 Boro ST Abandon RR
LocationDuncansville
RouteInterstate 99
CountyBlair County
StatePennsylvania
Coordinates40.42594, -78.42392
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length342 ft (104.2 m)
Longest span84 ft (25.6 m)
Deck width46 ft (13.9 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,640 (2023)
Projected traffic12,358 by 2032
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-99 / US 220 Nbl over US 22 Boro ST Abandon RR built?

It was built in 1981, making it 44 years old in 2025. It was reconstructed in 2013.

What condition is I-99 / US 220 Nbl over US 22 Boro ST Abandon RR 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 US 22 Boro ST Abandon RR carry?

About 8,640 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I-99 / US 220 Nbl over US 22 Boro ST Abandon RR?

The structure is 342 ft (104.2 m) long with a longest span of 84 ft (25.6 m) and a deck 46 ft wide.

Who owns I-99 / US 220 Nbl over US 22 Boro ST Abandon RR?

It is owned by the State Highway Agency.