US Bridges

Mountain RD over Piscataquis River

Fair

Piscataquis County, Maine · 1 MI W Townline · Structure no. 3798

Built
1964
61 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
85 ft
1 main span
Daily traffic
113
2016 count
Owner
State
State Highway Agency

About this bridge

Mountain RD over Piscataquis River is a steel stringer/multi-beam or girder carrying Mountain RD over Piscataquis River in Piscataquis County, Maine. It was built in 1964, so it is 61 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 6 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 113 vehicles a day, roughly 5% of them trucks, projected to reach 181 by 2036. The structure is 85 ft (26 m) long and 29 ft wide. If it were closed, the detour would be 100 mi (161 km).

Location

Open in Google Maps
CarriesMountain RD
CrossesPiscataquis River
Location1 MI W Townline
RouteCity Street 0
CountyPiscataquis County
StateMaine
Coordinates45.26738, -69.584
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating61.4 US tons
Inventory rating47.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length85 ft (26 m)
Longest span82 ft (25 m)
Deck width29 ft (8.8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic113 (2016)
Projected traffic181 by 2036
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed100 mi (161 km)
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 Mountain RD over Piscataquis River built?

It was built in 1964, making it 61 years old in 2025.

What condition is Mountain RD over Piscataquis River 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 August 2023.

How much traffic does Mountain RD over Piscataquis River carry?

About 113 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is Mountain RD over Piscataquis River?

The structure is 85 ft (26 m) long with a longest span of 82 ft (25 m) and a deck 29 ft wide.

Who owns Mountain RD over Piscataquis River?

It is owned by the State Highway Agency.