US Bridges

Frenchtown Road over Route 15

Fair

Fairfield County, Connecticut · 0.5 MI N of Route 111 · Structure no. 00749

Built
1942
83 years old, rebuilt 2006
Condition
Fair
inspected August 2023
Type
Arch - Deck
Concrete Continuous
Length
106 ft
2 main spans
Daily traffic
2,224
2023 count
Owner
State
State Highway Agency

About this bridge

Frenchtown Road over Route 15 is a concrete continuous arch - deck carrying Frenchtown Road over Route 15 in Fairfield County, Connecticut. It was built in 1942 and reconstructed in 2006, so it is 83 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 2,224 vehicles a day, roughly 4% of them trucks, projected to reach 3,305 by 2043. The structure is 106 ft (32.3 m) long and 37 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesFrenchtown Road
CrossesRoute 15
Location0.5 MI N of Route 111
RouteCity Street 0
Coordinates41.23188, -73.21181
Functional classUrban 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
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating75.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 20
Structure length106 ft (32.3 m)
Longest span50 ft (15.2 m)
Deck width37 ft (11.2 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,224 (2023)
Projected traffic3,305 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Frenchtown Road over Route 15 built?

It was built in 1942, making it 83 years old in 2025. It was reconstructed in 2006.

What condition is Frenchtown Road over Route 15 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 Frenchtown Road over Route 15 carry?

About 2,224 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Frenchtown Road over Route 15?

The structure is 106 ft (32.3 m) long with a longest span of 50 ft (15.2 m) and a deck 37 ft wide.

Who owns Frenchtown Road over Route 15?

It is owned by the State Highway Agency.