US Bridges

C3043 over Miller Brook

PoorPosted for load

Lamoille County, Vermont · 0.5 MI to JCT W CL3 TH48 · Structure no. 100808005108081

Built
1948
77 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
54 ft
1 main span
Daily traffic
400
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3043 over Miller Brook is a steel stringer/multi-beam or girder carrying C3043 over Miller Brook in Lamoille County, Vermont. It was built in 1948, so it is 77 years old, older than the Vermont average of 60.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 400 vehicles a day, roughly 2% of them trucks, projected to reach 420 by 2029. The structure is 54 ft (16.5 m) long and 23 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesC3043
CrossesMiller Brook
Location0.5 MI to JCT W CL3 TH48
StateVermont
Coordinates44.44829, -72.74836
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23 US tons
Inventory rating14 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length54 ft (16.5 m)
Longest span51 ft (15.5 m)
Deck width23 ft (6.9 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2019)
Projected traffic420 by 2029
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$725,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3043 over Miller Brook built?

It was built in 1948, making it 77 years old in 2025.

What condition is C3043 over Miller Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does C3043 over Miller Brook carry?

About 400 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3043 over Miller Brook?

The structure is 54 ft (16.5 m) long with a longest span of 51 ft (15.5 m) and a deck 23 ft wide.

Who owns C3043 over Miller Brook?

It is owned by the Town or Township Highway Agency.