US Bridges

Ssr 485 over Nickel Mine Brook

Fair

Litchfield County, Connecticut · 300 Feet North of Route 4 · Structure no. 03430

Built
1957
68 years old
Condition
Fair
inspected August 2023
Type
Slab
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
500
2021 count
Owner
State
State Highway Agency

About this bridge

Ssr 485 over Nickel Mine Brook is a prestressed concrete slab carrying Ssr 485 over Nickel Mine Brook in Litchfield County, Connecticut. It was built in 1957, so it is 68 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 500 vehicles a day, roughly 4% of them trucks, projected to reach 743 by 2041. The structure is 32 ft (9.8 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSsr 485
CrossesNickel Mine Brook
Location300 Feet North of Route 4
RouteState Highway 485
CountyLitchfield County
StateConnecticut
Coordinates41.82438, -73.15946
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length32 ft (9.8 m)
Longest span28 ft (8.5 m)
Deck width25 ft (7.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2021)
Projected traffic743 by 2041
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

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 Ssr 485 over Nickel Mine Brook built?

It was built in 1957, making it 68 years old in 2025.

What condition is Ssr 485 over Nickel Mine Brook 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 August 2023.

How much traffic does Ssr 485 over Nickel Mine Brook carry?

About 500 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is Ssr 485 over Nickel Mine Brook?

The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 25 ft wide.

Who owns Ssr 485 over Nickel Mine Brook?

It is owned by the State Highway Agency.