US Bridges

South Main Street over Copper Mine Brook

Fair

Hartford County, Connecticut · 5000 Ft East of Route 69 · Structure no. 05051

Built
1956
69 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
30 ft
2 main spans
Daily traffic
330
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

South Main Street over Copper Mine Brook is a concrete culvert carrying South Main Street over Copper Mine Brook in Hartford County, Connecticut. It was built in 1956, so it is 69 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 330 vehicles a day, roughly 7% of them trucks, projected to reach 490 by 2043. The structure is 30 ft (9.1 m) long and 36 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSouth Main Street
CrossesCopper Mine Brook
Location5000 Ft East of Route 69
RouteCity Street 0
Coordinates41.72538, -72.93055
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.1 US tons
Inventory rating54.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length30 ft (9.1 m)
Longest span14 ft (4.3 m)
Deck width36 ft (11.1 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic330 (2023)
Projected traffic490 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 South Main Street over Copper Mine Brook built?

It was built in 1956, making it 69 years old in 2025.

What condition is South Main Street over Copper 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 January 2025.

How much traffic does South Main Street over Copper Mine Brook carry?

About 330 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is South Main Street over Copper Mine Brook?

The structure is 30 ft (9.1 m) long with a longest span of 14 ft (4.3 m) and a deck 36 ft wide.

Who owns South Main Street over Copper Mine Brook?

It is owned by the Town or Township Highway Agency.