US Bridges

INTERSTATE-395 over Oil Mill Road

Fair

New London County, Connecticut · 0.7 MI S of Route 85 · Structure no. 00254

Built
1958
67 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
1 main span
Daily traffic
24,500
2020 count
Owner
State
State Highway Agency

About this bridge

INTERSTATE-395 over Oil Mill Road is a steel stringer/multi-beam or girder carrying INTERSTATE-395 over Oil Mill Road in New London County, Connecticut. It was built in 1958, 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 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 24,500 vehicles a day, roughly 9% of them trucks, projected to reach 36,405 by 2040. The structure is 81 ft (24.8 m) long and 104 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesINTERSTATE-395
CrossesOil Mill Road
Location0.7 MI S of Route 85
RouteInterstate 395
CountyNew London County
StateConnecticut
Coordinates41.39051, -72.17755
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length81 ft (24.8 m)
Longest span73 ft (22.2 m)
Deck width104 ft (31.6 m)
Roadway width76 ft (23.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,500 (2020)
Projected traffic36,405 by 2040
Trucks9%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was INTERSTATE-395 over Oil Mill Road built?

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

What condition is INTERSTATE-395 over Oil Mill Road 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 November 2023.

How much traffic does INTERSTATE-395 over Oil Mill Road carry?

About 24,500 vehicles per day (2020 count), of which roughly 9% are trucks.

How long is INTERSTATE-395 over Oil Mill Road?

The structure is 81 ft (24.8 m) long with a longest span of 73 ft (22.2 m) and a deck 104 ft wide.

Who owns INTERSTATE-395 over Oil Mill Road?

It is owned by the State Highway Agency.