US Bridges

Cache Creek Road over Spencer Creek

Fair

Fairbanks North Star Borough, Alaska · Mile Point 19.3 · Structure no. 1006

Built
1996
29 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
41 ft
1 main span
Daily traffic
30
2018 count
Owner
State
State Park, Forest, or Reservation Agency

About this bridge

Cache Creek Road over Spencer Creek is a steel stringer/multi-beam or girder carrying Cache Creek Road over Spencer Creek in Fairbanks North Star Borough, Alaska. It was built in 1996, so it is 29 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 30 vehicles a day, roughly 1% of them trucks, projected to reach 36 by 2035. The structure is 41 ft (12.4 m) long and 16 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesCache Creek Road
CrossesSpencer Creek
LocationMile Point 19.3
RouteState Lands Road NSPNR
CountyFairbanks North Star Borough
StateAlaska
Coordinates64.82821, -148.49103
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating47.6 US tons
Inventory rating35.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length41 ft (12.4 m)
Longest span39 ft (11.8 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2018)
Projected traffic36 by 2035
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Park, Forest, or Reservation Agency
Maintained byState Park, Forest, or Reservation 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 Cache Creek Road over Spencer Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is Cache Creek Road over Spencer Creek 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 Cache Creek Road over Spencer Creek carry?

About 30 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Cache Creek Road over Spencer Creek?

The structure is 41 ft (12.4 m) long with a longest span of 39 ft (11.8 m) and a deck 16 ft wide.

Who owns Cache Creek Road over Spencer Creek?

It is owned by the State Park, Forest, or Reservation Agency.