US Bridges

Mountford Ave. over Norfolk Southern RR

PoorPosted for load

Wake County, North Carolina · 0.1 Mi.W.Jct.Boylan Ave. · Structure no. 000000001830539

Built
1936
89 years old
Condition
Poor
inspected March 2024
Type
Tee Beam
Concrete
Length
96 ft
3 main spans
Daily traffic
289
2000 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mountford Ave. over Norfolk Southern RR is a concrete tee beam carrying Mountford Ave. over Norfolk Southern RR in Wake County, North Carolina. It was built in 1936, so it is 89 years old, older than the North Carolina average of 38.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 289 vehicles a day, roughly 7% of them trucks, projected to reach 578 by 2040. The structure is 96 ft (29.2 m) long and 44 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesMountford Ave.
CrossesNorfolk Southern RR
Location0.1 Mi.W.Jct.Boylan Ave.
RouteCity Street 0
CountyWake County
StateNorth Carolina
Coordinates35.77726, -78.65163
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating30 US tons
Inventory rating22.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length96 ft (29.2 m)
Longest span31 ft (9.4 m)
Deck width44 ft (13.4 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic289 (2000)
Projected traffic578 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mountford Ave. over Norfolk Southern RR built?

It was built in 1936, making it 89 years old in 2025.

What condition is Mountford Ave. over Norfolk Southern RR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2024.

How much traffic does Mountford Ave. over Norfolk Southern RR carry?

About 289 vehicles per day (2000 count), of which roughly 7% are trucks.

How long is Mountford Ave. over Norfolk Southern RR?

The structure is 96 ft (29.2 m) long with a longest span of 31 ft (9.4 m) and a deck 44 ft wide.

Who owns Mountford Ave. over Norfolk Southern RR?

It is owned by the City or Municipal Highway Agency.