US Bridges

Vt 00018 Ml over I 93 under Vt 18

Fair

Caledonia County, Vermont · I 93 Exit 1 · Structure no. 200225000903162

Built
1982
43 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
214 ft
2 main spans
Daily traffic
2,700
2018 count
Owner
State
State Highway Agency

About this bridge

Vt 00018 Ml over I 93 under Vt 18 is a steel continuous stringer/multi-beam or girder carrying Vt 00018 Ml over I 93 under Vt 18 in Caledonia County, Vermont. It was built in 1982, so it is 43 years old, younger than the Vermont average of 60.8 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 2,700 vehicles a day, roughly 6% of them trucks, projected to reach 2,835 by 2028. The structure is 214 ft (65.2 m) long and 55 ft wide.

CarriesVt 00018 Ml
CrossesI 93 under Vt 18
LocationI 93 Exit 1
RouteState Highway 18
StateVermont
Coordinates44.42577, -71.95499
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length214 ft (65.2 m)
Longest span105 ft (32 m)
Deck width55 ft (16.7 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2018)
Projected traffic2,835 by 2028
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkNon-Interstate STRAHNET route

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 Vt 00018 Ml over I 93 under Vt 18 built?

It was built in 1982, making it 43 years old in 2025.

What condition is Vt 00018 Ml over I 93 under Vt 18 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 June 2024.

How much traffic does Vt 00018 Ml over I 93 under Vt 18 carry?

About 2,700 vehicles per day (2018 count), of which roughly 6% are trucks.

How long is Vt 00018 Ml over I 93 under Vt 18?

The structure is 214 ft (65.2 m) long with a longest span of 105 ft (32 m) and a deck 55 ft wide.

Who owns Vt 00018 Ml over I 93 under Vt 18?

It is owned by the State Highway Agency.