US Bridges

SR 99-I 99 over SR 220 / N.Bald Eagle CR

Good

Centre County, Pennsylvania · 1.5 Mile N Port Matilda · Structure no. 000000000043108

Built
2005
20 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
745 ft
6 main spans
Daily traffic
12,419
2024 count
Owner
State
State Highway Agency

About this bridge

SR 99-I 99 over SR 220 / N.Bald Eagle CR is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 99-I 99 over SR 220 / N.Bald Eagle CR in Centre County, Pennsylvania. It was built in 2005, so it is 20 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 12,419 vehicles a day, roughly 12% of them trucks, projected to reach 14,672 by 2044. The structure is 745 ft (227.1 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 99-I 99
CrossesSR 220 / N.Bald Eagle CR
Location1.5 Mile N Port Matilda
RouteInterstate 99
Coordinates40.81111, -78.04306
Functional classRural Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103 US tons
Inventory rating27 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHL 93
Structure length745 ft (227.1 m)
Longest span126 ft (38.4 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,419 (2024)
Projected traffic14,672 by 2044
Trucks12%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 99-I 99 over SR 220 / N.Bald Eagle CR built?

It was built in 2005, making it 20 years old in 2025.

What condition is SR 99-I 99 over SR 220 / N.Bald Eagle CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2024.

How much traffic does SR 99-I 99 over SR 220 / N.Bald Eagle CR carry?

About 12,419 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is SR 99-I 99 over SR 220 / N.Bald Eagle CR?

The structure is 745 ft (227.1 m) long with a longest span of 126 ft (38.4 m) and a deck 55 ft wide.

Who owns SR 99-I 99 over SR 220 / N.Bald Eagle CR?

It is owned by the State Highway Agency.