US Bridges

INTERSTATE-95 over Mianus River & Local Rds

Fair

Fairfield County, Connecticut · Between Exits 4 & 5 · Structure no. 06015

Built
1958
67 years old, rebuilt 1992
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,662 ft
24 main spans
Daily traffic
120,300
2021 count
Owner
State
State Highway Agency

About this bridge

INTERSTATE-95 over Mianus River & Local Rds is a steel continuous stringer/multi-beam or girder carrying INTERSTATE-95 over Mianus River & Local Rds in Fairfield County, Connecticut. It was built in 1958 and reconstructed in 1992, so it is 67 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 120,300 vehicles a day, roughly 15% of them trucks, projected to reach 178,754 by 2041. The structure is 2,662 ft (811.4 m) long and 121 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesINTERSTATE-95
CrossesMianus River & Local Rds
LocationBetween Exits 4 & 5
RouteInterstate 95
Coordinates41.0366, -73.59214
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating23.3 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans24
Design loadHS 20
Structure length2,662 ft (811.4 m)
Longest span205 ft (62.5 m)
Deck width121 ft (36.8 m)
Roadway width114 ft (34.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120,300 (2021)
Projected traffic178,754 by 2041
Trucks15%
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
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was INTERSTATE-95 over Mianus River & Local Rds built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1992.

What condition is INTERSTATE-95 over Mianus River & Local Rds 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 January 2023.

How much traffic does INTERSTATE-95 over Mianus River & Local Rds carry?

About 120,300 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is INTERSTATE-95 over Mianus River & Local Rds?

The structure is 2,662 ft (811.4 m) long with a longest span of 205 ft (62.5 m) and a deck 121 ft wide.

Who owns INTERSTATE-95 over Mianus River & Local Rds?

It is owned by the State Highway Agency.