US Bridges

T-406 Trusal RD over South Branch Plum Creek

Fair

Indiana County, Pennsylvania · Btw T413 & SR4006 · Structure no. 000000000019501

Built
1991
34 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
59 ft
1 main span
Daily traffic
70
2023 count
Owner
County
County Highway Agency

About this bridge

T-406 Trusal RD over South Branch Plum Creek is a wood or timber stringer/multi-beam or girder carrying T-406 Trusal RD over South Branch Plum Creek in Indiana County, Pennsylvania. It was built in 1991, so it is 34 years old, younger 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 70 vehicles a day, roughly 10% of them trucks, projected to reach 105 by 2043. The structure is 59 ft (18 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesT-406 Trusal RD
CrossesSouth Branch Plum Creek
LocationBtw T413 & SR4006
RouteCity Street 7220
Coordinates40.73045, -79.18414
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68 US tons
Inventory rating47 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20 + Mod
Structure length59 ft (18 m)
Longest span57 ft (17.4 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2023)
Projected traffic105 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 T-406 Trusal RD over South Branch Plum Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is T-406 Trusal RD over South Branch Plum Creek 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 November 2023.

How much traffic does T-406 Trusal RD over South Branch Plum Creek carry?

About 70 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is T-406 Trusal RD over South Branch Plum Creek?

The structure is 59 ft (18 m) long with a longest span of 57 ft (17.4 m) and a deck 25 ft wide.

Who owns T-406 Trusal RD over South Branch Plum Creek?

It is owned by the County Highway Agency.