US Bridges

C3030 over Houghton Brook

Good

Caledonia County, Vermont · 0.5 MI JCT TH30 + TH 42 · Structure no. 100303002703031

Built
2005
20 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
25 ft
1 main span
Daily traffic
100
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3030 over Houghton Brook is a concrete culvert carrying C3030 over Houghton Brook in Caledonia County, Vermont. It was built in 2005, so it is 20 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 105 by 2029. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesC3030
CrossesHoughton Brook
Location0.5 MI JCT TH30 + TH 42
StateVermont
Coordinates44.49896, -72.10481
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2019)
Projected traffic105 by 2029
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was C3030 over Houghton Brook built?

It was built in 2005, making it 20 years old in 2025.

What condition is C3030 over Houghton Brook 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 September 2023.

How much traffic does C3030 over Houghton Brook carry?

About 100 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is C3030 over Houghton Brook?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m).

Who owns C3030 over Houghton Brook?

It is owned by the Town or Township Highway Agency.