US Bridges

Minnie Street over Noyes Slough (minnie St)

Poor

Fairbanks North Star Borough, Alaska · Mile Point 0.4 · Structure no. 0295

Built
1953
72 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
135 ft
3 main spans
Daily traffic
4,130
2020 count
Owner
State
State Highway Agency

About this bridge

Minnie Street over Noyes Slough (minnie St) is a steel stringer/multi-beam or girder carrying Minnie Street over Noyes Slough (minnie St) in Fairbanks North Star Borough, Alaska. It was built in 1953, so it is 72 years old, older than the Alaska average of 35.9 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 4,130 vehicles a day, roughly 5% of them trucks, projected to reach 5,280 by 2039. The structure is 135 ft (41.2 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMinnie Street
CrossesNoyes Slough (minnie St)
LocationMile Point 0.4
RouteState Highway 670
StateAlaska
Coordinates64.84875, -147.70699
Functional classUrban Minor Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.7 US tons
Inventory rating27.4 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length135 ft (41.2 m)
Longest span43 ft (13.2 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,130 (2020)
Projected traffic5,280 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.7 mi (6 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 Minnie Street over Noyes Slough (minnie St) built?

It was built in 1953, making it 72 years old in 2025.

What condition is Minnie Street over Noyes Slough (minnie St) 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 August 2024.

How much traffic does Minnie Street over Noyes Slough (minnie St) carry?

About 4,130 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Minnie Street over Noyes Slough (minnie St)?

The structure is 135 ft (41.2 m) long with a longest span of 43 ft (13.2 m) and a deck 31 ft wide.

Who owns Minnie Street over Noyes Slough (minnie St)?

It is owned by the State Highway Agency.