US Bridges

Rock Hill RD over Conestoga River

FairPosted for load

Lancaster County, Pennsylvania · At SR 3030 Intersection · Structure no. 000000000021878

Built
1923
102 years old
Condition
Fair
inspected June 2024
Type
Truss - Thru
Steel
Length
256 ft
2 main spans
Daily traffic
400
2012 count
Owner
County
County Highway Agency

About this bridge

Rock Hill RD over Conestoga River is a steel truss - thru carrying Rock Hill RD over Conestoga River in Lancaster County, Pennsylvania. It was built in 1923, so it is 102 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. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, roughly 2% of them trucks, projected to reach 535 by 2032. The structure is 256 ft (78 m) long and 19 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRock Hill RD
CrossesConestoga River
LocationAt SR 3030 Intersection
RouteCity Street 0
CountyLancaster County
StatePennsylvania
Coordinates39.9616, -76.3656
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 protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48 US tons
Inventory rating29 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckOpen grating
Main spans2
Design loadHS 20
Structure length256 ft (78 m)
Longest span128 ft (39 m)
Deck width19 ft (5.7 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic400 (2012)
Projected traffic535 by 2032
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$129,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Rock Hill RD over Conestoga River built?

It was built in 1923, making it 102 years old in 2025.

What condition is Rock Hill RD over Conestoga River 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 June 2024.

How much traffic does Rock Hill RD over Conestoga River carry?

About 400 vehicles per day (2012 count), of which roughly 2% are trucks.

How long is Rock Hill RD over Conestoga River?

The structure is 256 ft (78 m) long with a longest span of 128 ft (39 m) and a deck 19 ft wide.

Who owns Rock Hill RD over Conestoga River?

It is owned by the County Highway Agency.