US Bridges

Route 85 over Harris Brook

Good

New London County, Connecticut · 0.1 MI N of Route 82 · Structure no. 05583

Built
1987
38 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
26 ft
2 main spans
Daily traffic
3,900
2021 count
Owner
State
State Highway Agency

About this bridge

Route 85 over Harris Brook is a concrete culvert carrying Route 85 over Harris Brook in New London County, Connecticut. It was built in 1987, so it is 38 years old, younger than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,900 vehicles a day, roughly 3% of them trucks, projected to reach 5,795 by 2041. The structure is 26 ft (7.9 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRoute 85
CrossesHarris Brook
Location0.1 MI N of Route 82
RouteState Highway 85
Coordinates41.4779, -72.26635
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being 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 typeCulvert
MaterialConcrete
DeckOther
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span12 ft (3.7 m)
Deck width40 ft (12.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,900 (2021)
Projected traffic5,795 by 2041
Trucks3%
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

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 Route 85 over Harris Brook built?

It was built in 1987, making it 38 years old in 2025.

What condition is Route 85 over Harris Brook in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Route 85 over Harris Brook carry?

About 3,900 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Route 85 over Harris Brook?

The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m) and a deck 40 ft wide.

Who owns Route 85 over Harris Brook?

It is owned by the State Highway Agency.