US Bridges

Johansen Expresswy over Noyes Slough (geist Rd)

Fair

Fairbanks North Star Borough, Alaska · Mile Point 0.2 · Structure no. 1793

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
139 ft
1 main span
Daily traffic
18,000
2020 count
Owner
State
State Highway Agency

About this bridge

Johansen Expresswy over Noyes Slough (geist Rd) is a prestressed concrete tee beam carrying Johansen Expresswy over Noyes Slough (geist Rd) in Fairbanks North Star Borough, Alaska. It was built in 1993, so it is 32 years old, younger than the Alaska average of 35.9 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 18,000 vehicles a day, roughly 7% of them trucks, projected to reach 22,100 by 2039. The structure is 139 ft (42.4 m) long and 112 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesJohansen Expresswy
CrossesNoyes Slough (geist Rd)
LocationMile Point 0.2
RouteState Highway 668
StateAlaska
Coordinates64.84935, -147.80577
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96.7 US tons
Inventory rating41.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length139 ft (42.4 m)
Longest span131 ft (39.8 m)
Deck width112 ft (34.2 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,000 (2020)
Projected traffic22,100 by 2039
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Johansen Expresswy over Noyes Slough (geist Rd) built?

It was built in 1993, making it 32 years old in 2025.

What condition is Johansen Expresswy over Noyes Slough (geist Rd) 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 2024.

How much traffic does Johansen Expresswy over Noyes Slough (geist Rd) carry?

About 18,000 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Johansen Expresswy over Noyes Slough (geist Rd)?

The structure is 139 ft (42.4 m) long with a longest span of 131 ft (39.8 m) and a deck 112 ft wide.

Who owns Johansen Expresswy over Noyes Slough (geist Rd)?

It is owned by the State Highway Agency.