US Bridges

Forge Hill Road over Pachaug River

Poor

New London County, Connecticut · 0.6 MI North of Route 165 · Structure no. 04805

Built
1920
105 years old
Condition
Poor
inspected August 2024
Type
Slab
Concrete
Length
22 ft
1 main span
Daily traffic
482
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Forge Hill Road over Pachaug River is a concrete slab carrying Forge Hill Road over Pachaug River in New London County, Connecticut. It was built in 1920, so it is 105 years old, older than the Connecticut average of 56.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 482 vehicles a day, roughly 7% of them trucks, projected to reach 716 by 2044. The structure is 22 ft (6.7 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesForge Hill Road
CrossesPachaug River
Location0.6 MI North of Route 165
RouteCity Street 0
Coordinates41.58108, -71.8207
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span20 ft (6.1 m)
Deck width24 ft (7.2 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic482 (2024)
Projected traffic716 by 2044
Trucks7%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Forge Hill Road over Pachaug River built?

It was built in 1920, making it 105 years old in 2025.

What condition is Forge Hill Road over Pachaug River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Forge Hill Road over Pachaug River carry?

About 482 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is Forge Hill Road over Pachaug River?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.1 m) and a deck 24 ft wide.

Who owns Forge Hill Road over Pachaug River?

It is owned by the Town or Township Highway Agency.