US Bridges

Catlin Road over Lake Harwinton Dam

Good

Litchfield County, Connecticut · N of 118 Off Davis Road · Structure no. 05058

Built
2009
16 years old
Condition
Good
inspected October 2022
Type
Culvert
Concrete
Length
93 ft
6 main spans
Daily traffic
174
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Catlin Road over Lake Harwinton Dam is a concrete culvert carrying Catlin Road over Lake Harwinton Dam in Litchfield County, Connecticut. It was built in 2009, so it is 16 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 174 vehicles a day, roughly 5% of them trucks, projected to reach 259 by 2042. The structure is 93 ft (28.3 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesCatlin Road
CrossesLake Harwinton Dam
LocationN of 118 Off Davis Road
RouteCity Street 0
Coordinates41.7806, -73.08121
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadUnknown
Structure length93 ft (28.3 m)
Longest span14 ft (4.3 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic174 (2022)
Projected traffic259 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Catlin Road over Lake Harwinton Dam built?

It was built in 2009, making it 16 years old in 2025.

What condition is Catlin Road over Lake Harwinton Dam 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 October 2022.

How much traffic does Catlin Road over Lake Harwinton Dam carry?

About 174 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Catlin Road over Lake Harwinton Dam?

The structure is 93 ft (28.3 m) long with a longest span of 14 ft (4.3 m) and a deck 27 ft wide.

Who owns Catlin Road over Lake Harwinton Dam?

It is owned by the Town or Township Highway Agency.