US Bridges

T718 Miller Run RD over Miller Run

Fair

Somerset County, Pennsylvania · 1.5 Mi.S.Of Sand Patch · Structure no. 000000000031662

Built
1963
62 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
36
2024 count
Owner
State
State Highway Agency

About this bridge

T718 Miller Run RD over Miller Run is a concrete slab carrying T718 Miller Run RD over Miller Run in Somerset County, Pennsylvania. It was built in 1963, so it is 62 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 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 36 vehicles a day, roughly 6% of them trucks, projected to reach 31 by 2032. The structure is 23 ft (7 m) long and 35 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesT718 Miller Run RD
CrossesMiller Run
Location1.5 Mi.S.Of Sand Patch
RouteState Highway 0
Coordinates39.78564, -78.98035
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2024)
Projected traffic31 by 2032
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was T718 Miller Run RD over Miller Run built?

It was built in 1963, making it 62 years old in 2025.

What condition is T718 Miller Run RD 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 April 2024.

How much traffic does T718 Miller Run RD over Miller Run carry?

About 36 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is T718 Miller Run RD over Miller Run?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 35 ft wide.

Who owns T718 Miller Run RD over Miller Run?

It is owned by the State Highway Agency.