US Bridges

Oconner Road over Noyes Slough

Good

Fairbanks North Star Borough, Alaska · Mile Point 0.1 · Structure no. 2097

Built
1983
42 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
100
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Oconner Road over Noyes Slough is a steel stringer/multi-beam or girder carrying Oconner Road over Noyes Slough in Fairbanks North Star Borough, Alaska. It was built in 1983, so it is 42 years old, older than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 100 vehicles a day, roughly 1% of them trucks, projected to reach 120 by 2035. The structure is 60 ft (18.3 m) long and 29 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesOconner Road
CrossesNoyes Slough
LocationMile Point 0.1
RouteCity Street 0
StateAlaska
Coordinates64.85661, -147.72491
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56.1 US tons
Inventory rating42.7 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span59 ft (18 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2018)
Projected traffic120 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Oconner Road over Noyes Slough built?

It was built in 1983, making it 42 years old in 2025.

What condition is Oconner Road over Noyes Slough 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 August 2024.

How much traffic does Oconner Road over Noyes Slough carry?

About 100 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Oconner Road over Noyes Slough?

The structure is 60 ft (18.3 m) long with a longest span of 59 ft (18 m) and a deck 29 ft wide.

Who owns Oconner Road over Noyes Slough?

It is owned by the City or Municipal Highway Agency.