US Bridges

SR 99-I 99 over Bald Eagle C/Sr 3040

Fair

Centre County, Pennsylvania · 1 Mile South Port Matilda · Structure no. 000000000043385

Built
2006
19 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
580 ft
4 main spans
Daily traffic
6,883
2023 count
Owner
State
State Highway Agency

About this bridge

SR 99-I 99 over Bald Eagle C/Sr 3040 is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 99-I 99 over Bald Eagle C/Sr 3040 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 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 6,883 vehicles a day, roughly 15% of them trucks, projected to reach 7,393 by 2044. The structure is 580 ft (176.8 m) long and 43 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesSR 99-I 99
CrossesBald Eagle C/Sr 3040
Location1 Mile South Port Matilda
RouteInterstate 99
CountyCentre County
StatePennsylvania
Coordinates40.74031, -78.1171
Functional classRural 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
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 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 rating110.1 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length580 ft (176.8 m)
Longest span143 ft (43.6 m)
Deck width43 ft (13 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
CrossesHighway and waterway
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 Bald Eagle C/Sr 3040 built?

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

What condition is SR 99-I 99 over Bald Eagle C/Sr 3040 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 August 2024.

How much traffic does SR 99-I 99 over Bald Eagle C/Sr 3040 carry?

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

How long is SR 99-I 99 over Bald Eagle C/Sr 3040?

The structure is 580 ft (176.8 m) long with a longest span of 143 ft (43.6 m) and a deck 43 ft wide.

Who owns SR 99-I 99 over Bald Eagle C/Sr 3040?

It is owned by the State Highway Agency.