US Bridges

Main Street over Tankerhoosen River

Good

Tolland County, Connecticut · 0.4 Mile from Route 83 · Structure no. 04575

Built
1885
140 years old, rebuilt 2021
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
85 ft
1 main span
Daily traffic
21
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Main Street over Tankerhoosen River is a steel stringer/multi-beam or girder carrying Main Street over Tankerhoosen River in Tolland County, Connecticut. It was built in 1885 and reconstructed in 2021, so it is 140 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 21 vehicles a day, roughly 1% of them trucks, projected to reach 31 by 2043. The structure is 85 ft (25.9 m) long and 17 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesMain Street
CrossesTankerhoosen River
Location0.4 Mile from Route 83
RouteCity Street 0
Coordinates41.82221, -72.49802
Functional classUrban Local

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 inspectionNovember 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.4 US tons
Inventory rating58.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length85 ft (25.9 m)
Longest span74 ft (22.7 m)
Deck width17 ft (5.3 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21 (2023)
Projected traffic31 by 2043
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Main Street over Tankerhoosen River built?

It was built in 1885, making it 140 years old in 2025. It was reconstructed in 2021.

What condition is Main Street over Tankerhoosen 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 November 2023.

How much traffic does Main Street over Tankerhoosen River carry?

About 21 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is Main Street over Tankerhoosen River?

The structure is 85 ft (25.9 m) long with a longest span of 74 ft (22.7 m) and a deck 17 ft wide.

Who owns Main Street over Tankerhoosen River?

It is owned by the Town or Township Highway Agency.