US Bridges

SR 616 over Gillett Brook

Good

New London County, Connecticut · 1.9 MI E of Colchester Tl · Structure no. 01915

Built
1923
102 years old, rebuilt 2014
Condition
Good
inspected October 2023
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,600
2021 count
Owner
State
State Highway Agency

About this bridge

SR 616 over Gillett Brook is a concrete slab carrying SR 616 over Gillett Brook in New London County, Connecticut. It was built in 1923 and reconstructed in 2014, so it is 102 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,600 vehicles a day, roughly 8% of them trucks, projected to reach 2,377 by 2041. The structure is 32 ft (9.9 m) long and 36 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSR 616
CrossesGillett Brook
Location1.9 MI E of Colchester Tl
RouteState Highway 616
CountyNew London County
StateConnecticut
Coordinates41.5722, -72.22616
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.3 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.9 m)
Longest span27 ft (8.2 m)
Deck width36 ft (11.1 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2021)
Projected traffic2,377 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 616 over Gillett Brook built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 2014.

What condition is SR 616 over Gillett Brook 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 2023.

How much traffic does SR 616 over Gillett Brook carry?

About 1,600 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is SR 616 over Gillett Brook?

The structure is 32 ft (9.9 m) long with a longest span of 27 ft (8.2 m) and a deck 36 ft wide.

Who owns SR 616 over Gillett Brook?

It is owned by the State Highway Agency.