US Bridges

Black Barren RD over Conowingo Creek

Fair

Lancaster County, Pennsylvania · 1/2 MI West of US 222 · Structure no. 000000000021954

Built
1975
50 years old, rebuilt 2009
Condition
Fair
inspected September 2024
Type
Girder and Floorbeam System
Steel
Length
64 ft
1 main span
Daily traffic
340
2012 count
Owner
County
County Highway Agency

About this bridge

Black Barren RD over Conowingo Creek is a steel girder and floorbeam system carrying Black Barren RD over Conowingo Creek in Lancaster County, Pennsylvania. It was built in 1975 and reconstructed in 2009, so it is 50 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 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 340 vehicles a day, roughly 10% of them trucks, projected to reach 450 by 2032. The structure is 64 ft (19.5 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesBlack Barren RD
CrossesConowingo Creek
Location1/2 MI West of US 222
RouteCity Street 0
CountyLancaster County
StatePennsylvania
Coordinates39.74534, -76.17264
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length64 ft (19.5 m)
Longest span62 ft (18.9 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2012)
Projected traffic450 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Black Barren RD over Conowingo Creek built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2009.

What condition is Black Barren RD over Conowingo 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 September 2024.

How much traffic does Black Barren RD over Conowingo Creek carry?

About 340 vehicles per day (2012 count), of which roughly 10% are trucks.

How long is Black Barren RD over Conowingo Creek?

The structure is 64 ft (19.5 m) long with a longest span of 62 ft (18.9 m) and a deck 28 ft wide.

Who owns Black Barren RD over Conowingo Creek?

It is owned by the County Highway Agency.