US Bridges

Blue Swamp Road over W Branch Shepaug River

Good

Litchfield County, Connecticut · 1 Mile East of Warren Tl · Structure no. 05373

Built
2014
11 years old
Condition
Good
inspected August 2023
Type
Slab
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
186
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Blue Swamp Road over W Branch Shepaug River is a prestressed concrete slab carrying Blue Swamp Road over W Branch Shepaug River in Litchfield County, Connecticut. It was built in 2014, so it is 11 years old, younger than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 186 vehicles a day, roughly 7% of them trucks, projected to reach 276 by 2043. The structure is 50 ft (15.2 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesBlue Swamp Road
CrossesW Branch Shepaug River
Location1 Mile East of Warren Tl
RouteCity Street 0
Coordinates41.76777, -73.27873
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating72.1 US tons
Inventory rating55.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span46 ft (14 m)
Deck width26 ft (7.8 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic186 (2023)
Projected traffic276 by 2043
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Blue Swamp Road over W Branch Shepaug River built?

It was built in 2014, making it 11 years old in 2025.

What condition is Blue Swamp Road over W Branch Shepaug River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does Blue Swamp Road over W Branch Shepaug River carry?

About 186 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Blue Swamp Road over W Branch Shepaug River?

The structure is 50 ft (15.2 m) long with a longest span of 46 ft (14 m) and a deck 26 ft wide.

Who owns Blue Swamp Road over W Branch Shepaug River?

It is owned by the Town or Township Highway Agency.