US Bridges

Sigourney Street over Capitol Ave & AMTRAK

Fair

Hartford County, Connecticut · U I-84 (brg 3160A&B) · Structure no. 03023

Built
1964
61 years old, rebuilt 2022
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
654 ft
11 main spans
Daily traffic
11,900
2018 count
Owner
State
State Highway Agency

About this bridge

Sigourney Street over Capitol Ave & AMTRAK is a steel stringer/multi-beam or girder carrying Sigourney Street over Capitol Ave & AMTRAK in Hartford County, Connecticut. It was built in 1964 and reconstructed in 2022, so it is 61 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 11,900 vehicles a day, roughly 2% of them trucks, projected to reach 17,682 by 2038. The structure is 654 ft (199.3 m) long and 104 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesSigourney Street
CrossesCapitol Ave & AMTRAK
LocationU I-84 (brg 3160A&B)
RouteCity Street 0
CountyHartford County
StateConnecticut
Coordinates41.76408, -72.6938
Functional classUrban Minor 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating46 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans11
Design loadUnknown
Structure length654 ft (199.3 m)
Longest span78 ft (23.8 m)
Deck width104 ft (31.7 m)
Roadway width53 ft (16.2 m)
Vertical clearance over deck14 ft (4.3 m)

Traffic and service

Average daily traffic11,900 (2018)
Projected traffic17,682 by 2038
Trucks2%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway and railroad
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$22.4 million (2017 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sigourney Street over Capitol Ave & AMTRAK built?

It was built in 1964, making it 61 years old in 2025. It was reconstructed in 2022.

What condition is Sigourney Street over Capitol Ave & AMTRAK 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 July 2023.

How much traffic does Sigourney Street over Capitol Ave & AMTRAK carry?

About 11,900 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Sigourney Street over Capitol Ave & AMTRAK?

The structure is 654 ft (199.3 m) long with a longest span of 78 ft (23.8 m) and a deck 104 ft wide.

Who owns Sigourney Street over Capitol Ave & AMTRAK?

It is owned by the State Highway Agency.