US Bridges

999 Blue Rock RD over W Br L Conestoga Creek

Fair

Lancaster County, Pennsylvania · 2 Mi.W. of Millersville · Structure no. 000000000021366

Built
1964
61 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
4,513
2024 count
Owner
State
State Highway Agency

About this bridge

999 Blue Rock RD over W Br L Conestoga Creek is a concrete slab carrying 999 Blue Rock RD over W Br L Conestoga Creek in Lancaster County, Pennsylvania. It was built in 1964, so it is 61 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 6 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 4,513 vehicles a day, roughly 6% of them trucks, projected to reach 7,028 by 2032. The structure is 28 ft (8.5 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries999 Blue Rock RD
CrossesW Br L Conestoga Creek
Location2 Mi.W. of Millersville
RouteState Highway 999
Coordinates40.00731, -76.40199
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating39 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span26 ft (7.9 m)
Deck width44 ft (13.3 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,513 (2024)
Projected traffic7,028 by 2032
Trucks6%
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

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 999 Blue Rock RD over W Br L Conestoga Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is 999 Blue Rock RD over W Br L Conestoga 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 June 2024.

How much traffic does 999 Blue Rock RD over W Br L Conestoga Creek carry?

About 4,513 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is 999 Blue Rock RD over W Br L Conestoga Creek?

The structure is 28 ft (8.5 m) long with a longest span of 26 ft (7.9 m) and a deck 44 ft wide.

Who owns 999 Blue Rock RD over W Br L Conestoga Creek?

It is owned by the State Highway Agency.