US Bridges

SR2004 over Miller Run

Fair

Armstrong County, Pennsylvania · Copper Valley NO.1 · Structure no. 000000000003175

Built
1967
58 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
53 ft
1 main span
Daily traffic
317
2024 count
Owner
State
State Highway Agency

About this bridge

SR2004 over Miller Run is a steel stringer/multi-beam or girder carrying SR2004 over Miller Run in Armstrong County, Pennsylvania. It was built in 1967, so it is 58 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 317 vehicles a day, roughly 30% of them trucks, projected to reach 853 by 2032. The structure is 53 ft (16.2 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR2004
CrossesMiller Run
LocationCopper Valley NO.1
RouteState Highway 0
CountyArmstrong County
StatePennsylvania
Coordinates40.72558, -79.29709
Functional classRural 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating50 US tons
Inventory rating30 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckClosed grating
Main spans1
Design loadHS 20
Structure length53 ft (16.2 m)
Longest span51 ft (15.5 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic317 (2024)
Projected traffic853 by 2032
Trucks30%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$51,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR2004 over Miller Run built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR2004 over Miller 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 August 2023.

How much traffic does SR2004 over Miller Run carry?

About 317 vehicles per day (2024 count), of which roughly 30% are trucks.

How long is SR2004 over Miller Run?

The structure is 53 ft (16.2 m) long with a longest span of 51 ft (15.5 m) and a deck 31 ft wide.

Who owns SR2004 over Miller Run?

It is owned by the State Highway Agency.