US Bridges

I-99 / US 220 Sbl over T349

Fair

Blair County, Pennsylvania · 1 Mi.S.Of East Freedom · Structure no. 000000000005570

Built
1988
37 years old, rebuilt 2011
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
138 ft
1 main span
Daily traffic
6,208
2024 count
Owner
State
State Highway Agency

About this bridge

I-99 / US 220 Sbl over T349 is a prestressed concrete stringer/multi-beam or girder carrying I-99 / US 220 Sbl over T349 in Blair County, Pennsylvania. It was built in 1988 and reconstructed in 2011, so it is 37 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 6,208 vehicles a day, roughly 20% of them trucks, projected to reach 7,270 by 2032. The structure is 138 ft (42.1 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesI-99 / US 220 Sbl
CrossesT349
Location1 Mi.S.Of East Freedom
RouteInterstate 99
CountyBlair County
StatePennsylvania
Coordinates40.33854, -78.43001
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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
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 geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating53 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length138 ft (42.1 m)
Longest span124 ft (37.8 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,208 (2024)
Projected traffic7,270 by 2032
Trucks20%
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 Sbl over T349 built?

It was built in 1988, making it 37 years old in 2025. It was reconstructed in 2011.

What condition is I-99 / US 220 Sbl over T349 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 June 2023.

How much traffic does I-99 / US 220 Sbl over T349 carry?

About 6,208 vehicles per day (2024 count), of which roughly 20% are trucks.

How long is I-99 / US 220 Sbl over T349?

The structure is 138 ft (42.1 m) long with a longest span of 124 ft (37.8 m) and a deck 44 ft wide.

Who owns I-99 / US 220 Sbl over T349?

It is owned by the State Highway Agency.