US Bridges

Fair ST over Bobbin Mill Brook

Fair

Androscoggin County, Maine · 300 Ft E Rt 4 · Structure no. 0070

Built
1925
100 years old, rebuilt 2014
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
24 ft
1 main span
Daily traffic
639
2016 count
Owner
State
State Highway Agency

About this bridge

Fair ST over Bobbin Mill Brook is a steel stringer/multi-beam or girder carrying Fair ST over Bobbin Mill Brook in Androscoggin County, Maine. It was built in 1925 and reconstructed in 2014, so it is 100 years old, older 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 639 vehicles a day, roughly 5% of them trucks, projected to reach 1,022 by 2036. The structure is 24 ft (7.3 m) long and 27 ft wide.

CarriesFair ST
CrossesBobbin Mill Brook
Location300 Ft E Rt 4
RouteCity Street 0
StateMaine
Coordinates44.14461, -70.22573
Functional classUrban 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating41.4 US tons
Inventory rating32.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length24 ft (7.3 m)
Longest span21 ft (6.5 m)
Deck width27 ft (8.2 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic639 (2016)
Projected traffic1,022 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fair ST over Bobbin Mill Brook built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 2014.

What condition is Fair ST over Bobbin Mill 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 July 2024.

How much traffic does Fair ST over Bobbin Mill Brook carry?

About 639 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Fair ST over Bobbin Mill Brook?

The structure is 24 ft (7.3 m) long with a longest span of 21 ft (6.5 m) and a deck 27 ft wide.

Who owns Fair ST over Bobbin Mill Brook?

It is owned by the State Highway Agency.