US Bridges

Route 1 Byp over Route 3 (belmont Av)

Fair

Waldo County, Maine · JCT of Rtes 1& 3 · Structure no. 1378

Built
1973
52 years old
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
105 ft
1 main span
Daily traffic
7,983
2016 count
Owner
State
State Highway Agency

About this bridge

Route 1 Byp over Route 3 (belmont Av) is a steel stringer/multi-beam or girder carrying Route 1 Byp over Route 3 (belmont Av) in Waldo County, Maine. It was built in 1973, so it is 52 years old, younger than the Maine average of 53.7 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 7,983 vehicles a day, roughly 5% of them trucks, projected to reach 11,176 by 2036. The structure is 105 ft (32 m) long and 47 ft wide.

CarriesRoute 1 Byp
CrossesRoute 3 (belmont Av)
LocationJCT of Rtes 1& 3
RouteState Highway 1
StateMaine
Coordinates44.42369, -69.02151
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.9 US tons
Inventory rating49.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length105 ft (32 m)
Longest span100 ft (30.5 m)
Deck width47 ft (14.2 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,983 (2016)
Projected traffic11,176 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Route 1 Byp over Route 3 (belmont Av) built?

It was built in 1973, making it 52 years old in 2025.

What condition is Route 1 Byp over Route 3 (belmont Av) 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 November 2024.

How much traffic does Route 1 Byp over Route 3 (belmont Av) carry?

About 7,983 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Route 1 Byp over Route 3 (belmont Av)?

The structure is 105 ft (32 m) long with a longest span of 100 ft (30.5 m) and a deck 47 ft wide.

Who owns Route 1 Byp over Route 3 (belmont Av)?

It is owned by the State Highway Agency.