US Bridges

Sawmill CR Road over Indian River

Good

Sitka City and Borough, Alaska · Mile Point 0.6 · Structure no. 0865

Built
2007
18 years old
Condition
Good
inspected May 2023
Type
Tee Beam
Prestressed Concrete
Length
143 ft
1 main span
Daily traffic
7,870
2020 count
Owner
State
State Highway Agency

About this bridge

Sawmill CR Road over Indian River is a prestressed concrete tee beam carrying Sawmill CR Road over Indian River in Sitka City and Borough, Alaska. It was built in 2007, so it is 18 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 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 7,870 vehicles a day, roughly 7% of them trucks, projected to reach 9,190 by 2039. The structure is 143 ft (43.6 m) long and 50 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesSawmill CR Road
CrossesIndian River
LocationMile Point 0.6
RouteState Highway 933
StateAlaska
Coordinates57.0525, -135.31861
Functional classUrban Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating102.6 US tons
Inventory rating61.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length143 ft (43.6 m)
Longest span140 ft (42.7 m)
Deck width50 ft (15.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,870 (2020)
Projected traffic9,190 by 2039
Trucks7%
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 Sawmill CR Road over Indian River built?

It was built in 2007, making it 18 years old in 2025.

What condition is Sawmill CR Road over Indian River 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 May 2023.

How much traffic does Sawmill CR Road over Indian River carry?

About 7,870 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is Sawmill CR Road over Indian River?

The structure is 143 ft (43.6 m) long with a longest span of 140 ft (42.7 m) and a deck 50 ft wide.

Who owns Sawmill CR Road over Indian River?

It is owned by the State Highway Agency.