US Bridges

T784 Miller Run RD over Miller Run

Poor

Somerset County, Pennsylvania · 2.5MI NW of Central City · Structure no. 000000000047938

Built
1990
35 years old
Condition
Poor
inspected June 2023
Type
Culvert
Steel
Length
27 ft
1 main span
Daily traffic
50
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T784 Miller Run RD over Miller Run is a steel culvert carrying T784 Miller Run RD over Miller Run in Somerset County, Pennsylvania. It was built in 1990, so it is 35 years old, younger than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 50 vehicles a day, roughly 1% of them trucks, projected to reach 51 by 2043. The structure is 27 ft (8.2 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesT784 Miller Run RD
CrossesMiller Run
Location2.5MI NW of Central City
RouteCity Street 0
Coordinates40.14039, -78.83444
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span27 ft (8.2 m)
Deck width18 ft (5.4 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2023)
Projected traffic51 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 T784 Miller Run RD over Miller Run built?

It was built in 1990, making it 35 years old in 2025.

What condition is T784 Miller Run RD over Miller Run in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does T784 Miller Run RD over Miller Run carry?

About 50 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is T784 Miller Run RD over Miller Run?

The structure is 27 ft (8.2 m) long with a longest span of 27 ft (8.2 m) and a deck 18 ft wide.

Who owns T784 Miller Run RD over Miller Run?

It is owned by the Town or Township Highway Agency.