US Bridges

U.S. Route 7 over N Mountain RD & Limekiln

Fair

Fairfield County, Connecticut · Structure 18-113-3 · Structure no. 06565

Built
2009
16 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
457 ft
3 main spans
Daily traffic
12,200
2021 count
Owner
State
State Highway Agency

About this bridge

U.S. Route 7 over N Mountain RD & Limekiln is a steel continuous stringer/multi-beam or girder carrying U.S. Route 7 over N Mountain RD & Limekiln in Fairfield County, Connecticut. It was built in 2009, so it is 16 years old, younger 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 12,200 vehicles a day, roughly 6% of them trucks, projected to reach 18,128 by 2041. The structure is 457 ft (139.3 m) long and 89 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesU.S. Route 7
CrossesN Mountain RD & Limekiln
LocationStructure 18-113-3
RouteU.S. Route 7
CountyFairfield County
StateConnecticut
Coordinates41.48631, -73.41828
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 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 alignment8: Equal to present desirable criteria
Operating rating63.3 US tons
Inventory rating38.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length457 ft (139.3 m)
Longest span197 ft (60 m)
Deck width89 ft (27.1 m)
Roadway width85 ft (26 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,200 (2021)
Projected traffic18,128 by 2041
Trucks6%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was U.S. Route 7 over N Mountain RD & Limekiln built?

It was built in 2009, making it 16 years old in 2025.

What condition is U.S. Route 7 over N Mountain RD & Limekiln 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 October 2023.

How much traffic does U.S. Route 7 over N Mountain RD & Limekiln carry?

About 12,200 vehicles per day (2021 count), of which roughly 6% are trucks.

How long is U.S. Route 7 over N Mountain RD & Limekiln?

The structure is 457 ft (139.3 m) long with a longest span of 197 ft (60 m) and a deck 89 ft wide.

Who owns U.S. Route 7 over N Mountain RD & Limekiln?

It is owned by the State Highway Agency.