US Bridges

SR 99-I 99 over Seda-Cog/Nit&bald Egl RR

Fair

Centre County, Pennsylvania · 1 Mile West Port Matilda · Structure no. 000000000043384

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

About this bridge

SR 99-I 99 over Seda-Cog/Nit&bald Egl RR is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 99-I 99 over Seda-Cog/Nit&bald Egl RR 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 368 ft (112.2 m) long and 48 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSR 99-I 99
CrossesSeda-Cog/Nit&bald Egl RR
Location1 Mile West Port Matilda
RouteInterstate 99
CountyCentre County
StatePennsylvania
Coordinates40.78629, -78.06695
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating28 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length368 ft (112.2 m)
Longest span137 ft (41.8 m)
Deck width48 ft (14.5 m)
Roadway width45 ft (13.7 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
CrossesRailroad
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 99-I 99 over Seda-Cog/Nit&bald Egl RR built?

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

What condition is SR 99-I 99 over Seda-Cog/Nit&bald Egl 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 August 2024.

How much traffic does SR 99-I 99 over Seda-Cog/Nit&bald Egl RR carry?

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

How long is SR 99-I 99 over Seda-Cog/Nit&bald Egl RR?

The structure is 368 ft (112.2 m) long with a longest span of 137 ft (41.8 m) and a deck 48 ft wide.

Who owns SR 99-I 99 over Seda-Cog/Nit&bald Egl RR?

It is owned by the State Highway Agency.