US Bridges

Route 8 over Housatonic River Rt 110

Fair

Fairfield County, Connecticut · Route 8 Exit 14 · Structure no. 00571A

Built
1951
74 years old, rebuilt 2019
Condition
Fair
inspected September 2023
Type
Truss - Deck
Steel
Length
1,578 ft
3 main spans
Daily traffic
82,700
2021 count
Owner
State
State Highway Agency

About this bridge

Route 8 over Housatonic River Rt 110 is a steel truss - deck carrying Route 8 over Housatonic River Rt 110 in Fairfield County, Connecticut. It was built in 1951 and reconstructed in 2019, so it is 74 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 5 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 82,700 vehicles a day, roughly 6% of them trucks, projected to reach 122,884 by 2041. The structure is 1,578 ft (481 m) long and 100 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRoute 8
CrossesHousatonic River Rt 110
LocationRoute 8 Exit 14
RouteState Highway 8
Coordinates41.31402, -73.08697
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

Structure typeTruss - Deck
MaterialSteel
DeckConcrete, cast-in-place
Main spans3 (+9 approach)
Design loadHS 20
Structure length1,578 ft (481 m)
Longest span254 ft (77.4 m)
Deck width100 ft (30.4 m)
Roadway width88 ft (26.8 m)
Vertical clearance over deck20 ft (6 m)

Traffic and service

Average daily traffic82,700 (2021)
Projected traffic122,884 by 2041
Trucks6%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Route 8 over Housatonic River Rt 110 built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 2019.

What condition is Route 8 over Housatonic River Rt 110 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 September 2023.

How much traffic does Route 8 over Housatonic River Rt 110 carry?

About 82,700 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is Route 8 over Housatonic River Rt 110?

The structure is 1,578 ft (481 m) long with a longest span of 254 ft (77.4 m) and a deck 100 ft wide.

Who owns Route 8 over Housatonic River Rt 110?

It is owned by the State Highway Agency.