US Bridges

Lime Kiln RD TH4 over Winooski River & Necrr

Good

Chittenden County, Vermont · 0.2 MI S JCT Vt 15 on TH4 · Structure no. 205206000604142

Built
2006
19 years old
Condition
Good
inspected July 2024
Type
Arch - Deck
Concrete
Length
298 ft
1 main span
Daily traffic
7,300
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lime Kiln RD TH4 over Winooski River & Necrr is a concrete arch - deck carrying Lime Kiln RD TH4 over Winooski River & Necrr in Chittenden County, Vermont. It was built in 2006, so it is 19 years old, younger than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,300 vehicles a day, roughly 3% of them trucks, projected to reach 7,665 by 2026. The structure is 298 ft (90.8 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLime Kiln RD TH4
CrossesWinooski River & Necrr
Location0.2 MI S JCT Vt 15 on TH4
RouteCity Street LIMKN
StateVermont
Coordinates44.49001, -73.16212
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating59 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, precast panels
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length298 ft (90.8 m)
Longest span231 ft (70.4 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,300 (2016)
Projected traffic7,665 by 2026
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Lime Kiln RD TH4 over Winooski River & Necrr built?

It was built in 2006, making it 19 years old in 2025.

What condition is Lime Kiln RD TH4 over Winooski River & Necrr in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Lime Kiln RD TH4 over Winooski River & Necrr carry?

About 7,300 vehicles per day (2016 count), of which roughly 3% are trucks.

How long is Lime Kiln RD TH4 over Winooski River & Necrr?

The structure is 298 ft (90.8 m) long with a longest span of 231 ft (70.4 m) and a deck 42 ft wide.

Who owns Lime Kiln RD TH4 over Winooski River & Necrr?

It is owned by the City or Municipal Highway Agency.