US Bridges

C3448 over Power Dam Canal

PoorPosted for load

Windham County, Vermont · @ JCT W CL3 TH450 · Structure no. 101314005313141

Built
1909
116 years old
Condition
Poor
inspected April 2024
Type
Culvert
Concrete
Length
112 ft
1 main span
Daily traffic
600
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3448 over Power Dam Canal is a concrete culvert carrying C3448 over Power Dam Canal in Windham County, Vermont. It was built in 1909, so it is 116 years old, older than the Vermont average of 60.8 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. Its operating status is: posted for load restriction.

It carries about 600 vehicles a day, roughly 2% of them trucks, projected to reach 630 by 2029. The structure is 112 ft (34.1 m) long and 37 ft wide.

CarriesC3448
CrossesPower Dam Canal
Location@ JCT W CL3 TH450
StateVermont
Coordinates43.13556, -72.44534
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 protection8 Very GoodNo problems noted.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17 US tons
Inventory rating11 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length112 ft (34.1 m)
Longest span96 ft (29.3 m)
Deck width37 ft (11.4 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2019)
Projected traffic630 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3448 over Power Dam Canal built?

It was built in 1909, making it 116 years old in 2025.

What condition is C3448 over Power Dam Canal 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 April 2024.

How much traffic does C3448 over Power Dam Canal carry?

About 600 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3448 over Power Dam Canal?

The structure is 112 ft (34.1 m) long with a longest span of 96 ft (29.3 m) and a deck 37 ft wide.

Who owns C3448 over Power Dam Canal?

It is owned by the Town or Township Highway Agency.