US Bridges

State ST over Millinocket Stream

Poor

Penobscot County, Maine · 0.25 Mile N RTE 11 · Structure no. 0909

Built
1950
75 years old, rebuilt 1990
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
91 ft
1 main span
Daily traffic
697
2016 count
Owner
State
State Highway Agency

About this bridge

State ST over Millinocket Stream is a steel stringer/multi-beam or girder carrying State ST over Millinocket Stream in Penobscot County, Maine. It was built in 1950 and reconstructed in 1990, so it is 75 years old, older than the Maine average of 53.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 697 vehicles a day, roughly 5% of them trucks, projected to reach 1,115 by 2036. The structure is 91 ft (27.6 m) long and 37 ft wide.

Location

Open in Google Maps
CarriesState ST
CrossesMillinocket Stream
Location0.25 Mile N RTE 11
RouteCity Street 0
CountyPenobscot County
StateMaine
Coordinates45.65995, -68.70633
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length91 ft (27.6 m)
Longest span86 ft (26.2 m)
Deck width37 ft (11.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic697 (2016)
Projected traffic1,115 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 State ST over Millinocket Stream built?

It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1990.

What condition is State ST over Millinocket Stream in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does State ST over Millinocket Stream carry?

About 697 vehicles per day (2016 count), of which roughly 5% are trucks.

How long is State ST over Millinocket Stream?

The structure is 91 ft (27.6 m) long with a longest span of 86 ft (26.2 m) and a deck 37 ft wide.

Who owns State ST over Millinocket Stream?

It is owned by the State Highway Agency.