US Bridges

INTERSTATE-91 SB over Evergreen Road

Fair

Middlesex County, Connecticut · .69 MI So of RTE 9 O-Pass · Structure no. 03146

Built
1965
60 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
128 ft
3 main spans
Daily traffic
52,900
2022 count
Owner
State
State Highway Agency

About this bridge

INTERSTATE-91 SB over Evergreen Road is a steel stringer/multi-beam or girder carrying INTERSTATE-91 SB over Evergreen Road in Middlesex County, Connecticut. It was built in 1965, so it is 60 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 52,900 vehicles a day, roughly 9% of them trucks, projected to reach 78,604 by 2042. The structure is 128 ft (38.9 m) long and 55 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesINTERSTATE-91 SB
CrossesEvergreen Road
Location.69 MI So of RTE 9 O-Pass
RouteInterstate 91
Coordinates41.6156, -72.69749
Functional classUrban Principal Arterial - Interstate

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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length128 ft (38.9 m)
Longest span57 ft (17.4 m)
Deck width55 ft (16.9 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52,900 (2022)
Projected traffic78,604 by 2042
Trucks9%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 INTERSTATE-91 SB over Evergreen Road built?

It was built in 1965, making it 60 years old in 2025.

What condition is INTERSTATE-91 SB over Evergreen Road 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 June 2024.

How much traffic does INTERSTATE-91 SB over Evergreen Road carry?

About 52,900 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is INTERSTATE-91 SB over Evergreen Road?

The structure is 128 ft (38.9 m) long with a longest span of 57 ft (17.4 m) and a deck 55 ft wide.

Who owns INTERSTATE-91 SB over Evergreen Road?

It is owned by the State Highway Agency.