US Bridges

Muldoon Road over Muldoon Overcrossing NB

Good

Anchorage Municipality, Alaska · Mile Point 3.3 · Structure no. 2308

Built
2017
8 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
222 ft
2 main spans
Daily traffic
9,450
2020 count
Owner
State
State Highway Agency

About this bridge

Muldoon Road over Muldoon Overcrossing NB is a prestressed concrete tee beam carrying Muldoon Road over Muldoon Overcrossing NB in Anchorage Municipality, Alaska. It was built in 2017, so it is 8 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 9,450 vehicles a day, roughly 4% of them trucks, projected to reach 11,100 by 2039. The structure is 222 ft (67.7 m) long and 52 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesMuldoon Road
CrossesMuldoon Overcrossing NB
LocationMile Point 3.3
RouteState Highway 0
StateAlaska
Coordinates61.22712, -149.73403
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.4 US tons
Inventory rating56.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHL 93
Structure length222 ft (67.7 m)
Longest span109 ft (33.2 m)
Deck width52 ft (15.8 m)
Roadway width50 ft (15.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,450 (2020)
Projected traffic11,100 by 2039
Trucks4%
Lanes on structure3
Traffic directionOne-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 Muldoon Road over Muldoon Overcrossing NB built?

It was built in 2017, making it 8 years old in 2025.

What condition is Muldoon Road over Muldoon Overcrossing NB 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 Muldoon Road over Muldoon Overcrossing NB carry?

About 9,450 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is Muldoon Road over Muldoon Overcrossing NB?

The structure is 222 ft (67.7 m) long with a longest span of 109 ft (33.2 m) and a deck 52 ft wide.

Who owns Muldoon Road over Muldoon Overcrossing NB?

It is owned by the State Highway Agency.