US Bridges

SR 4034 over I-99 / US 220

Good

Bedford County, Pennsylvania · Blue Knob Interchange · Structure no. 000000000004392

Built
1979
46 years old, rebuilt 2023
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
254 ft
2 main spans
Daily traffic
1,886
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4034 over I-99 / US 220 is a steel continuous stringer/multi-beam or girder carrying SR 4034 over I-99 / US 220 in Bedford County, Pennsylvania. It was built in 1979 and reconstructed in 2023, so it is 46 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 1,886 vehicles a day, roughly 6% of them trucks, projected to reach 1,780 by 2032. The structure is 254 ft (77.4 m) long and 52 ft wide.

Location

Open in Google Maps
CarriesSR 4034
CrossesI-99 / US 220
LocationBlue Knob Interchange
RouteState Highway 0
CountyBedford County
StatePennsylvania
Coordinates40.19355, -78.48716
Functional classRural Local

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.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length254 ft (77.4 m)
Longest span125 ft (38.1 m)
Deck width52 ft (15.7 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,886 (2024)
Projected traffic1,780 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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 4034 over I-99 / US 220 built?

It was built in 1979, making it 46 years old in 2025. It was reconstructed in 2023.

What condition is SR 4034 over I-99 / US 220 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 March 2024.

How much traffic does SR 4034 over I-99 / US 220 carry?

About 1,886 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is SR 4034 over I-99 / US 220?

The structure is 254 ft (77.4 m) long with a longest span of 125 ft (38.1 m) and a deck 52 ft wide.

Who owns SR 4034 over I-99 / US 220?

It is owned by the State Highway Agency.