US Bridges

Delta-Nistler Road over Jarvis Creek Overflow #1

Good

Southeast Fairbanks Census Area, Alaska · Mile Point 1.0 · Structure no. 4036

Built
1996
29 years old
Condition
Good
inspected July 2023
Type
Culvert
Concrete
Length
34 ft
5 main spans
Daily traffic
1,250
2020 count
Owner
State
State Highway Agency

About this bridge

Delta-Nistler Road over Jarvis Creek Overflow #1 is a concrete culvert carrying Delta-Nistler Road over Jarvis Creek Overflow #1 in Southeast Fairbanks Census Area, 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,250 vehicles a day, roughly 10% of them trucks, projected to reach 1,520 by 2039. The structure is 34 ft (10.4 m) long and 33 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesDelta-Nistler Road
CrossesJarvis Creek Overflow #1
LocationMile Point 1.0
RouteCity Street 0
StateAlaska
Coordinates64.0412, -145.6809
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating61.9 US tons
Inventory rating37.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span6 ft (1.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2020)
Projected traffic1,520 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed11.2 mi (18 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 Delta-Nistler Road over Jarvis Creek Overflow #1 built?

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

What condition is Delta-Nistler Road over Jarvis Creek Overflow #1 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 2023.

How much traffic does Delta-Nistler Road over Jarvis Creek Overflow #1 carry?

About 1,250 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Delta-Nistler Road over Jarvis Creek Overflow #1?

The structure is 34 ft (10.4 m) long with a longest span of 6 ft (1.8 m) and a deck 33 ft wide.

Who owns Delta-Nistler Road over Jarvis Creek Overflow #1?

It is owned by the State Highway Agency.