US Bridges

Quartz Creek Road over Quartz Creek

Good

Kenai Peninsula Borough, Alaska · Mile Point 0.7 · Structure no. 1020

Built
2024
1 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
202 ft
2 main spans
Daily traffic
210
2020 count
Owner
State
State Highway Agency

About this bridge

Quartz Creek Road over Quartz Creek is a prestressed concrete tee beam carrying Quartz Creek Road over Quartz Creek in Kenai Peninsula Borough, Alaska. It was built in 2024, so it is 1 years old, younger 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 210 vehicles a day, roughly 6% of them trucks, projected to reach 240 by 2039. The structure is 202 ft (61.6 m) long and 27 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesQuartz Creek Road
CrossesQuartz Creek
LocationMile Point 0.7
RouteCounty Highway NSPCG
StateAlaska
Coordinates60.48049, -149.72083
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating67.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHL 93
Structure length202 ft (61.6 m)
Longest span97 ft (29.7 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic210 (2020)
Projected traffic240 by 2039
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Quartz Creek Road over Quartz Creek built?

It was built in 2024, making it 1 years old in 2025.

What condition is Quartz Creek Road over Quartz Creek 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 Quartz Creek Road over Quartz Creek carry?

About 210 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is Quartz Creek Road over Quartz Creek?

The structure is 202 ft (61.6 m) long with a longest span of 97 ft (29.7 m) and a deck 27 ft wide.

Who owns Quartz Creek Road over Quartz Creek?

It is owned by the State Highway Agency.