US Bridges

SR 4006 over Hemlock Creek

Fair

Columbia County, Pennsylvania · 4 Mi.West of Buckhorn · Structure no. 000000000012707

Built
1983
42 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
1,205
2024 count
Owner
State
State Highway Agency

About this bridge

SR 4006 over Hemlock Creek is a prestressed concrete slab carrying SR 4006 over Hemlock Creek in Columbia County, Pennsylvania. It was built in 1983, so it is 42 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 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 1,205 vehicles a day, roughly 2% of them trucks, projected to reach 1,383 by 2032. The structure is 36 ft (11 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 4006
CrossesHemlock Creek
Location4 Mi.West of Buckhorn
RouteState Highway 0
CountyColumbia County
StatePennsylvania
Coordinates41.01109, -76.50645
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating107 US tons
Inventory rating56 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length36 ft (11 m)
Longest span34 ft (10.4 m)
Deck width32 ft (9.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,205 (2024)
Projected traffic1,383 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 SR 4006 over Hemlock Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is SR 4006 over Hemlock 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 March 2023.

How much traffic does SR 4006 over Hemlock Creek carry?

About 1,205 vehicles per day (2024 count), of which roughly 2% are trucks.

How long is SR 4006 over Hemlock Creek?

The structure is 36 ft (11 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.

Who owns SR 4006 over Hemlock Creek?

It is owned by the State Highway Agency.