US Bridges

Route 8 Southbound over Harwinton Avenue

Fair

Litchfield County, Connecticut · 0.4 MI N. of Harwinton Tl · Structure no. 01736B

Built
1966
59 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
70 ft
1 main span
Daily traffic
9,700
2021 count
Owner
State
State Highway Agency

About this bridge

Route 8 Southbound over Harwinton Avenue is a steel stringer/multi-beam or girder carrying Route 8 Southbound over Harwinton Avenue in Litchfield County, Connecticut. It was built in 1966, so it is 59 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 9,700 vehicles a day, roughly 5% of them trucks, projected to reach 14,413 by 2041. The structure is 70 ft (21.3 m) long and 44 ft wide.

CarriesRoute 8 Southbound
CrossesHarwinton Avenue
Location0.4 MI N. of Harwinton Tl
RouteState Highway 8
Coordinates41.79619, -73.11179
Functional classUrban Principal Arterial - Other Freeway or Expressway

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 inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating101 US tons
Inventory rating60 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span65 ft (19.8 m)
Deck width44 ft (13.3 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,700 (2021)
Projected traffic14,413 by 2041
Trucks5%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 8 Southbound over Harwinton Avenue built?

It was built in 1966, making it 59 years old in 2025.

What condition is Route 8 Southbound over Harwinton Avenue 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 2024.

How much traffic does Route 8 Southbound over Harwinton Avenue carry?

About 9,700 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is Route 8 Southbound over Harwinton Avenue?

The structure is 70 ft (21.3 m) long with a longest span of 65 ft (19.8 m) and a deck 44 ft wide.

Who owns Route 8 Southbound over Harwinton Avenue?

It is owned by the State Highway Agency.