US Bridges

Route 124 over Route 15

Fair

Fairfield County, Connecticut · Exit 37 Route 15 · Structure no. 00712

Built
1937
88 years old, rebuilt 1972
Condition
Fair
inspected March 2023
Type
Frame
Concrete
Length
78 ft
1 main span
Daily traffic
7,800
2020 count
Owner
State
State Highway Agency

About this bridge

Route 124 over Route 15 is a concrete frame carrying Route 124 over Route 15 in Fairfield County, Connecticut. It was built in 1937 and reconstructed in 1972, so it is 88 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 5 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 7,800 vehicles a day, roughly 6% of them trucks, projected to reach 11,590 by 2040. The structure is 78 ft (23.7 m) long and 52 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRoute 124
CrossesRoute 15
LocationExit 37 Route 15
RouteState Highway 124
Coordinates41.1191, -73.4831
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55 US tons
Inventory rating42.5 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length78 ft (23.7 m)
Longest span68 ft (20.6 m)
Deck width52 ft (16 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,800 (2020)
Projected traffic11,590 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Route 124 over Route 15 built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1972.

What condition is Route 124 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 March 2023.

How much traffic does Route 124 over Route 15 carry?

About 7,800 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Route 124 over Route 15?

The structure is 78 ft (23.7 m) long with a longest span of 68 ft (20.6 m) and a deck 52 ft wide.

Who owns Route 124 over Route 15?

It is owned by the State Highway Agency.