US Bridges

US Route 1 over Fort Hill Brook

Fair

New London County, Connecticut · 0.4 MI East of Route 117 · Structure no. 02389

Built
1963
62 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
10,900
2024 count
Owner
State
State Highway Agency

About this bridge

US Route 1 over Fort Hill Brook is a concrete culvert carrying US Route 1 over Fort Hill Brook in New London County, Connecticut. It was built in 1963, so it is 62 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 10,900 vehicles a day, roughly 7% of them trucks, projected to reach 16,196 by 2044. The structure is 28 ft (8.4 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS Route 1
CrossesFort Hill Brook
Location0.4 MI East of Route 117
RouteU.S. Route 1
Coordinates41.34733, -72.02029
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length28 ft (8.4 m)
Longest span7 ft (2.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,900 (2024)
Projected traffic16,196 by 2044
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 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 US Route 1 over Fort Hill Brook built?

It was built in 1963, making it 62 years old in 2025.

What condition is US Route 1 over Fort Hill 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 April 2024.

How much traffic does US Route 1 over Fort Hill Brook carry?

About 10,900 vehicles per day (2024 count), of which roughly 7% are trucks.

How long is US Route 1 over Fort Hill Brook?

The structure is 28 ft (8.4 m) long with a longest span of 7 ft (2.1 m).

Who owns US Route 1 over Fort Hill Brook?

It is owned by the State Highway Agency.