US Bridges

Green Ridge Road over Conewago Creek

Fair

Adams County, Pennsylvania · 1 E.Hmptn Rdg/Hmltn Conwg · Structure no. 000000000000428

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
185 ft
3 main spans
Daily traffic
110
2009 count
Owner
County
County Highway Agency

About this bridge

Green Ridge Road over Conewago Creek is a steel stringer/multi-beam or girder carrying Green Ridge Road over Conewago Creek in Adams County, Pennsylvania. It was built in 1957, so it is 68 years old, older 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 5 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 110 vehicles a day, roughly 2% of them trucks, projected to reach 154 by 2030. The structure is 185 ft (56.4 m) long and 22 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesGreen Ridge Road
CrossesConewago Creek
Location1 E.Hmptn Rdg/Hmltn Conwg
RouteCity Street 0
CountyAdams County
StatePennsylvania
Coordinates39.92876, -77.03366
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating73 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length185 ft (56.4 m)
Longest span59 ft (18 m)
Deck width22 ft (6.7 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2009)
Projected traffic154 by 2030
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Green Ridge Road over Conewago Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Green Ridge Road over Conewago Creek 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 2023.

How much traffic does Green Ridge Road over Conewago Creek carry?

About 110 vehicles per day (2009 count), of which roughly 2% are trucks.

How long is Green Ridge Road over Conewago Creek?

The structure is 185 ft (56.4 m) long with a longest span of 59 ft (18 m) and a deck 22 ft wide.

Who owns Green Ridge Road over Conewago Creek?

It is owned by the County Highway Agency.