US Bridges

BIA Route 443 over Mattamiscontis Stream

Good

Penobscot County, Maine · 24.7 KM Nwland Me How · Structure no. 0000S50018B0033

Built
2003
22 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
20
2024 count
Owner
Federal
Bureau of Indian Affairs

About this bridge

BIA Route 443 over Mattamiscontis Stream is a steel stringer/multi-beam or girder carrying BIA Route 443 over Mattamiscontis Stream in Penobscot County, Maine. It was built in 2003, so it is 22 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, roughly 50% of them trucks, projected to reach 23 by 2044. The structure is 40 ft (12.1 m) long and 16 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesBIA Route 443
CrossesMattamiscontis Stream
Location24.7 KM Nwland Me How
RouteFederal Lands Road 443
StateMaine
Coordinates45.46158, -68.67872
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.9 US tons
Inventory rating92.4 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length40 ft (12.1 m)
Longest span40 ft (12.1 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic23 by 2044
Trucks50%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Indian Affairs
Maintained byBureau of Indian Affairs
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 BIA Route 443 over Mattamiscontis Stream built?

It was built in 2003, making it 22 years old in 2025.

What condition is BIA Route 443 over Mattamiscontis 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 July 2024.

How much traffic does BIA Route 443 over Mattamiscontis Stream carry?

About 20 vehicles per day (2024 count), of which roughly 50% are trucks.

How long is BIA Route 443 over Mattamiscontis Stream?

The structure is 40 ft (12.1 m) long with a longest span of 40 ft (12.1 m) and a deck 16 ft wide.

Who owns BIA Route 443 over Mattamiscontis Stream?

It is owned by the Bureau of Indian Affairs.