US Bridges

Route 341 over Housatonic Railroad

Fair

Litchfield County, Connecticut · 75 East of JCT SR 827 · Structure no. 04110

Built
1901
124 years old, rebuilt 1978
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
1,500
2020 count
Owner
State
State Highway Agency

About this bridge

Route 341 over Housatonic Railroad is a prestressed concrete box beam or girders - multiple carrying Route 341 over Housatonic Railroad in Litchfield County, Connecticut. It was built in 1901 and reconstructed in 1978, so it is 124 years old, older than the Connecticut average of 56.7 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 1,500 vehicles a day, roughly 6% of them trucks, projected to reach 2,229 by 2040. The structure is 32 ft (9.8 m) long and 39 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesRoute 341
CrossesHousatonic Railroad
Location75 East of JCT SR 827
RouteState Highway 341
Coordinates41.7166, -73.47209
Functional classRural Major Collector

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.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating70.8 US tons
Inventory rating42.4 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width39 ft (11.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2020)
Projected traffic2,229 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed8.1 mi (13 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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 341 over Housatonic Railroad built?

It was built in 1901, making it 124 years old in 2025. It was reconstructed in 1978.

What condition is Route 341 over Housatonic Railroad 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 December 2023.

How much traffic does Route 341 over Housatonic Railroad carry?

About 1,500 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Route 341 over Housatonic Railroad?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 39 ft wide.

Who owns Route 341 over Housatonic Railroad?

It is owned by the State Highway Agency.