US Bridges

SR 620 over Mashapaug Pond

Fair

Tolland County, Connecticut · 1500 North of Route 171 · Structure no. 01861

Built
1953
72 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
56 ft
3 main spans
Daily traffic
200
2020 count
Owner
State
State Highway Agency

About this bridge

SR 620 over Mashapaug Pond is a concrete continuous slab carrying SR 620 over Mashapaug Pond in Tolland County, Connecticut. It was built in 1953, so it is 72 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 5 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 200 vehicles a day, roughly 4% of them trucks, projected to reach 297 by 2040. The structure is 56 ft (17.1 m) long and 36 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesSR 620
CrossesMashapaug Pond
Location1500 North of Route 171
RouteState Highway 620
CountyTolland County
StateConnecticut
Coordinates42.02642, -72.13959
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33.6 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length56 ft (17.1 m)
Longest span16 ft (4.9 m)
Deck width36 ft (10.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2020)
Projected traffic297 by 2040
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 620 over Mashapaug Pond built?

It was built in 1953, making it 72 years old in 2025.

What condition is SR 620 over Mashapaug Pond 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 November 2023.

How much traffic does SR 620 over Mashapaug Pond carry?

About 200 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SR 620 over Mashapaug Pond?

The structure is 56 ft (17.1 m) long with a longest span of 16 ft (4.9 m) and a deck 36 ft wide.

Who owns SR 620 over Mashapaug Pond?

It is owned by the State Highway Agency.