US Bridges

Route 71 over Mattabesset River

Good

Hartford County, Connecticut · 1.5 MI North of Route 71A · Structure no. 03800

Built
1974
51 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
85 ft
1 main span
Daily traffic
2,300
2021 count
Owner
State
State Highway Agency

About this bridge

Route 71 over Mattabesset River is a steel stringer/multi-beam or girder carrying Route 71 over Mattabesset River in Hartford County, Connecticut. It was built in 1974, so it is 51 years old, younger than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,300 vehicles a day, roughly 3% of them trucks, projected to reach 3,418 by 2041. The structure is 85 ft (25.8 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRoute 71
CrossesMattabesset River
Location1.5 MI North of Route 71A
RouteState Highway 71
Coordinates41.63039, -72.7795
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating67.5 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length85 ft (25.8 m)
Longest span80 ft (24.4 m)
Deck width41 ft (12.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,300 (2021)
Projected traffic3,418 by 2041
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Route 71 over Mattabesset River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Route 71 over Mattabesset River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Route 71 over Mattabesset River carry?

About 2,300 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Route 71 over Mattabesset River?

The structure is 85 ft (25.8 m) long with a longest span of 80 ft (24.4 m) and a deck 41 ft wide.

Who owns Route 71 over Mattabesset River?

It is owned by the State Highway Agency.