US Bridges

SR 99-I 99 over Blue Springs Hollow / RD

Good

Centre County, Pennsylvania · 2 Miles SW Port Matilda · Structure no. 000000000043988

Built
2006
19 years old
Condition
Good
inspected July 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
424 ft
4 main spans
Daily traffic
6,883
2023 count
Owner
State
State Highway Agency

About this bridge

SR 99-I 99 over Blue Springs Hollow / RD is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 99-I 99 over Blue Springs Hollow / RD in Centre County, Pennsylvania. It was built in 2006, so it is 19 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 6,883 vehicles a day, roughly 15% of them trucks, projected to reach 7,393 by 2044. The structure is 424 ft (129.2 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 99-I 99
CrossesBlue Springs Hollow / RD
Location2 Miles SW Port Matilda
RouteInterstate 99
Coordinates40.74017, -78.11733
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating89 US tons
Inventory rating46 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length424 ft (129.2 m)
Longest span122 ft (37.2 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,883 (2023)
Projected traffic7,393 by 2044
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Blue Springs Hollow / RD built?

It was built in 2006, making it 19 years old in 2025.

What condition is SR 99-I 99 over Blue Springs Hollow / RD 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 July 2022.

How much traffic does SR 99-I 99 over Blue Springs Hollow / RD carry?

About 6,883 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is SR 99-I 99 over Blue Springs Hollow / RD?

The structure is 424 ft (129.2 m) long with a longest span of 122 ft (37.2 m) and a deck 43 ft wide.

Who owns SR 99-I 99 over Blue Springs Hollow / RD?

It is owned by the State Highway Agency.