US Bridges

SR 120-PA 120 over Mill Creek

Fair

Elk County, Pennsylvania · Daguscahonda · Structure no. 000000000015523

Built
1947
78 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
40 ft
1 main span
Daily traffic
3,617
2024 count
Owner
State
State Highway Agency

About this bridge

SR 120-PA 120 over Mill Creek is a concrete tee beam carrying SR 120-PA 120 over Mill Creek in Elk County, Pennsylvania. It was built in 1947, so it is 78 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 3,617 vehicles a day, roughly 7% of them trucks, projected to reach 4,577 by 2044. The structure is 40 ft (12.2 m) long and 41 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

Location

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CarriesSR 120-PA 120
CrossesMill Creek
LocationDaguscahonda
RouteState Highway 120
CountyElk County
StatePennsylvania
Coordinates41.41991, -78.64216
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating40 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.6 m)
Deck width41 ft (12.6 m)
Roadway width38 ft (11.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,617 (2024)
Projected traffic4,577 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$431,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 120-PA 120 over Mill Creek built?

It was built in 1947, making it 78 years old in 2025.

What condition is SR 120-PA 120 over Mill 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 May 2024.

How much traffic does SR 120-PA 120 over Mill Creek carry?

About 3,617 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR 120-PA 120 over Mill Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 41 ft wide.

Who owns SR 120-PA 120 over Mill Creek?

It is owned by the State Highway Agency.