US Bridges

Saw Mill Road over Marshepaug River

Good

Litchfield County, Connecticut · Right on Minor RD Go 3 MI · Structure no. 05183

Built
1955
70 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
184
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Saw Mill Road over Marshepaug River is a concrete continuous culvert carrying Saw Mill Road over Marshepaug River in Litchfield County, Connecticut. It was built in 1955, so it is 70 years old, older 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 184 vehicles a day, roughly 7% of them trucks, projected to reach 273 by 2043. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSaw Mill Road
CrossesMarshepaug River
LocationRight on Minor RD Go 3 MI
RouteCity Street 0
Coordinates41.76853, -73.27262
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic184 (2023)
Projected traffic273 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$338,000 (2018 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Saw Mill Road over Marshepaug River built?

It was built in 1955, making it 70 years old in 2025.

What condition is Saw Mill Road over Marshepaug 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 Saw Mill Road over Marshepaug River carry?

About 184 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Saw Mill Road over Marshepaug River?

The structure is 29 ft (8.8 m) long with a longest span of 14 ft (4.3 m).

Who owns Saw Mill Road over Marshepaug River?

It is owned by the Town or Township Highway Agency.