US Bridges

INTERSTATE-91 SB over AMTRAK Railroad

Fair

Hartford County, Connecticut · 0.3 Mile South of Exit 34 · Structure no. 06008

Built
1991
34 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
156 ft
3 main spans
Daily traffic
61,100
2022 count
Owner
State
State Highway Agency

About this bridge

INTERSTATE-91 SB over AMTRAK Railroad is a steel continuous stringer/multi-beam or girder carrying INTERSTATE-91 SB over AMTRAK Railroad in Hartford County, Connecticut. It was built in 1991, so it is 34 years old, younger 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 61,100 vehicles a day, roughly 14% of them trucks, projected to reach 90,788 by 2042. The structure is 156 ft (47.6 m) long and 79 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesINTERSTATE-91 SB
CrossesAMTRAK Railroad
Location0.3 Mile South of Exit 34
RouteInterstate 91
Coordinates41.80243, -72.65713
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.6 US tons
Inventory rating55.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length156 ft (47.6 m)
Longest span51 ft (15.5 m)
Deck width79 ft (24.2 m)
Roadway width75 ft (22.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic61,100 (2022)
Projected traffic90,788 by 2042
Trucks14%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 AMTRAK Railroad built?

It was built in 1991, making it 34 years old in 2025.

What condition is INTERSTATE-91 SB over AMTRAK Railroad 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 December 2023.

How much traffic does INTERSTATE-91 SB over AMTRAK Railroad carry?

About 61,100 vehicles per day (2022 count), of which roughly 14% are trucks.

How long is INTERSTATE-91 SB over AMTRAK Railroad?

The structure is 156 ft (47.6 m) long with a longest span of 51 ft (15.5 m) and a deck 79 ft wide.

Who owns INTERSTATE-91 SB over AMTRAK Railroad?

It is owned by the State Highway Agency.