US Bridges

SR 8 Wattsburg RD over Over Alder Brook

Fair

Erie County, Pennsylvania · Venango Township · Structure no. 000000000015853

Built
1950
75 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete
Length
39 ft
1 main span
Daily traffic
4,139
2024 count
Owner
State
State Highway Agency

About this bridge

SR 8 Wattsburg RD over Over Alder Brook is a concrete tee beam carrying SR 8 Wattsburg RD over Over Alder Brook in Erie County, Pennsylvania. It was built in 1950, so it is 75 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 4,139 vehicles a day, roughly 7% of them trucks, projected to reach 6,754 by 2032. The structure is 39 ft (11.9 m) long and 41 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSR 8 Wattsburg RD
CrossesOver Alder Brook
LocationVenango Township
RouteState Highway 8
CountyErie County
StatePennsylvania
Coordinates42.06029, -79.88194
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
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 inspectionOctober 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length39 ft (11.9 m)
Longest span37 ft (11.3 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,139 (2024)
Projected traffic6,754 by 2032
Trucks7%
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 8 Wattsburg RD over Over Alder Brook built?

It was built in 1950, making it 75 years old in 2025.

What condition is SR 8 Wattsburg RD over Over Alder Brook 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 October 2024.

How much traffic does SR 8 Wattsburg RD over Over Alder Brook carry?

About 4,139 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is SR 8 Wattsburg RD over Over Alder Brook?

The structure is 39 ft (11.9 m) long with a longest span of 37 ft (11.3 m) and a deck 41 ft wide.

Who owns SR 8 Wattsburg RD over Over Alder Brook?

It is owned by the State Highway Agency.