US Bridges

SR0066 over Elder Run

Fair

Armstrong County, Pennsylvania · Lookabough NO.3 · Structure no. 000000000002997

Built
1952
73 years old
Condition
Fair
inspected May 2024
Type
Tee Beam
Concrete
Length
29 ft
1 main span
Daily traffic
2,942
2024 count
Owner
State
State Highway Agency

About this bridge

SR0066 over Elder Run is a concrete tee beam carrying SR0066 over Elder Run in Armstrong County, Pennsylvania. It was built in 1952, so it is 73 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 2,942 vehicles a day, roughly 11% of them trucks, projected to reach 3,978 by 2032. The structure is 29 ft (8.8 m) long and 44 ft wide.

Location

Open in Google Maps
CarriesSR0066
CrossesElder Run
LocationLookabough NO.3
RouteState Highway 66
CountyArmstrong County
StatePennsylvania
Coordinates40.67194, -79.59789
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating46 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,942 (2024)
Projected traffic3,978 by 2032
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 SR0066 over Elder Run built?

It was built in 1952, making it 73 years old in 2025.

What condition is SR0066 over Elder Run 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 SR0066 over Elder Run carry?

About 2,942 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is SR0066 over Elder Run?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 44 ft wide.

Who owns SR0066 over Elder Run?

It is owned by the State Highway Agency.