US Bridges

C3030 over Ball Mtn. Brook

FairPosted for load

Windham County, Vermont · 0.1 MI JCT TH 27 & TH 30 · Structure no. 101309002813091

Built
1939
86 years old
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
74 ft
1 main span
Daily traffic
75
2019 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

C3030 over Ball Mtn. Brook is a steel stringer/multi-beam or girder carrying C3030 over Ball Mtn. Brook in Windham County, Vermont. It was built in 1939, so it is 86 years old, older 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, roughly 2% of them trucks, projected to reach 79 by 2029. The structure is 74 ft (22.6 m) long and 16 ft wide. If it were closed, the detour would be 23 mi (37 km).

Location

Open in Google Maps
CarriesC3030
CrossesBall Mtn. Brook
Location0.1 MI JCT TH 27 & TH 30
CountyWindham County
StateVermont
Coordinates43.06929, -72.85003
Functional classRural Local

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating12 US tons
Inventory rating6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length74 ft (22.6 m)
Longest span70 ft (21.3 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2019)
Projected traffic79 by 2029
Trucks2%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 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$672,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C3030 over Ball Mtn. Brook built?

It was built in 1939, making it 86 years old in 2025.

What condition is C3030 over Ball Mtn. Brook 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 C3030 over Ball Mtn. Brook carry?

About 75 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is C3030 over Ball Mtn. Brook?

The structure is 74 ft (22.6 m) long with a longest span of 70 ft (21.3 m) and a deck 16 ft wide.

Who owns C3030 over Ball Mtn. Brook?

It is owned by the Town or Township Highway Agency.