US Bridges

US 15 Nb; SR 0015 over Rock Creek

Good

Adams County, Pennsylvania · South of Gettysburg · Structure no. 000000000000012

Built
1990
35 years old
Condition
Good
inspected January 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
156 ft
2 main spans
Daily traffic
9,804
2024 count
Owner
State
State Highway Agency

About this bridge

US 15 Nb; SR 0015 over Rock Creek is a prestressed concrete box beam or girders - multiple carrying US 15 Nb; SR 0015 over Rock Creek in Adams County, Pennsylvania. It was built in 1990, so it is 35 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 9,804 vehicles a day, roughly 19% of them trucks, projected to reach 13,741 by 2032. The structure is 156 ft (47.5 m) long and 43 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 15 Nb; SR 0015
CrossesRock Creek
LocationSouth of Gettysburg
RouteU.S. Route 15
Coordinates39.79231, -77.20746
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
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 rating73 US tons
Inventory rating44 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length156 ft (47.5 m)
Longest span76 ft (23.2 m)
Deck width43 ft (13.2 m)
Roadway width41 ft (12.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,804 (2024)
Projected traffic13,741 by 2032
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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 US 15 Nb; SR 0015 over Rock Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is US 15 Nb; SR 0015 over Rock Creek 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 January 2023.

How much traffic does US 15 Nb; SR 0015 over Rock Creek carry?

About 9,804 vehicles per day (2024 count), of which roughly 19% are trucks.

How long is US 15 Nb; SR 0015 over Rock Creek?

The structure is 156 ft (47.5 m) long with a longest span of 76 ft (23.2 m) and a deck 43 ft wide.

Who owns US 15 Nb; SR 0015 over Rock Creek?

It is owned by the State Highway Agency.