US Bridges

Old Mill RD over Purgatory Stream

Good

Kennebec County, Maine · .1 MI S Litchfield RD · Structure no. 0517

Built
2023
2 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
36
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Old Mill RD over Purgatory Stream is a steel stringer/multi-beam or girder carrying Old Mill RD over Purgatory Stream in Kennebec County, Maine. It was built in 2023, so it is 2 years old, younger than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 36 vehicles a day, roughly 5% of them trucks, projected to reach 58 by 2036. The structure is 51 ft (15.5 m) long and 18 ft wide. If it were closed, the detour would be 100 mi (161 km).

CarriesOld Mill RD
CrossesPurgatory Stream
Location.1 MI S Litchfield RD
RouteCity Street 0
StateMaine
Coordinates44.21785, -69.92592
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations on dry land well above flood water elevations
Structural evaluation9: Superior to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.1 US tons
Inventory rating47.2 US tons

Structure

MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadGreater than HL 93
Structure length51 ft (15.5 m)
Longest span48 ft (14.6 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36 (2016)
Projected traffic58 by 2036
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 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 Old Mill RD over Purgatory Stream built?

It was built in 2023, making it 2 years old in 2025.

What condition is Old Mill RD over Purgatory Stream 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 January 2024.

How much traffic does Old Mill RD over Purgatory Stream carry?

About 36 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Old Mill RD over Purgatory Stream?

The structure is 51 ft (15.5 m) long with a longest span of 48 ft (14.6 m) and a deck 18 ft wide.

Who owns Old Mill RD over Purgatory Stream?

It is owned by the Town or Township Highway Agency.