US Bridges

Boniface Parkway over Boniface Parkway Oc

Fair

Anchorage Municipality, Alaska · Mile Point 3.2 · Structure no. 1525

Built
1986
39 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
207 ft
2 main spans
Daily traffic
15,900
2020 count
Owner
State
State Highway Agency

About this bridge

Boniface Parkway over Boniface Parkway Oc is a prestressed concrete tee beam carrying Boniface Parkway over Boniface Parkway Oc in Anchorage Municipality, Alaska. It was built in 1986, so it is 39 years old, older 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 15,900 vehicles a day, roughly 4% of them trucks, projected to reach 27,500 by 2039. The structure is 207 ft (63.1 m) long and 98 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesBoniface Parkway
CrossesBoniface Parkway Oc
LocationMile Point 3.2
RouteCity Street 543
StateAlaska
Coordinates61.22472, -149.77833
Functional classUrban Other Principal Arterial

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.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating45.3 US tons
Inventory rating27.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length207 ft (63.1 m)
Longest span107 ft (32.7 m)
Deck width98 ft (29.9 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,900 (2020)
Projected traffic27,500 by 2039
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Boniface Parkway over Boniface Parkway Oc built?

It was built in 1986, making it 39 years old in 2025.

What condition is Boniface Parkway over Boniface Parkway Oc 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 July 2023.

How much traffic does Boniface Parkway over Boniface Parkway Oc carry?

About 15,900 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Boniface Parkway over Boniface Parkway Oc?

The structure is 207 ft (63.1 m) long with a longest span of 107 ft (32.7 m) and a deck 98 ft wide.

Who owns Boniface Parkway over Boniface Parkway Oc?

It is owned by the State Highway Agency.