US Bridges

Route 17 NB over East Main Street

Fair

Middlesex County, Connecticut · 100 North of Maple Stree · Structure no. 00861

Built
1954
71 years old, rebuilt 1990
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
171 ft
3 main spans
Daily traffic
13,300
2022 count
Owner
State
State Highway Agency

About this bridge

Route 17 NB over East Main Street is a steel stringer/multi-beam or girder carrying Route 17 NB over East Main Street in Middlesex County, Connecticut. It was built in 1954 and reconstructed in 1990, so it is 71 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 6 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 13,300 vehicles a day, roughly 6% of them trucks, projected to reach 19,762 by 2042. The structure is 171 ft (52.1 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 17 NB
CrossesEast Main Street
Location100 North of Maple Stree
RouteState Highway 17
Coordinates41.55452, -72.64331
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length171 ft (52.1 m)
Longest span71 ft (21.6 m)
Deck width52 ft (16 m)
Roadway width49 ft (14.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,300 (2022)
Projected traffic19,762 by 2042
Trucks6%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 17 NB over East Main Street built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1990.

What condition is Route 17 NB over East Main Street 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 2024.

How much traffic does Route 17 NB over East Main Street carry?

About 13,300 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Route 17 NB over East Main Street?

The structure is 171 ft (52.1 m) long with a longest span of 71 ft (21.6 m) and a deck 52 ft wide.

Who owns Route 17 NB over East Main Street?

It is owned by the State Highway Agency.