US Bridges

Forest Parkway over Straight Branch

Fair

Wake County, North Carolina · 225 S.Jct.Duncan Hill Ct · Structure no. 000000001830679

Built
1988
37 years old
Condition
Fair
inspected March 2024
Type
Culvert
Steel
Length
30 ft
3 main spans
Daily traffic
500
1994 count
Owner
City
City or Municipal Highway Agency

About this bridge

Forest Parkway over Straight Branch is a steel culvert carrying Forest Parkway over Straight Branch in Wake County, North Carolina. It was built in 1988, so it is 37 years old, younger than the North Carolina average of 38.7 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 500 vehicles a day, roughly 7% of them trucks, projected to reach 1,000 by 2040. The structure is 30 ft (9.1 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesForest Parkway
CrossesStraight Branch
Location225 S.Jct.Duncan Hill Ct
RouteCity Street 0
CountyWake County
StateNorth Carolina
Coordinates35.74989, -78.76181
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20 + Mod
Structure length30 ft (9.1 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (1994)
Projected traffic1,000 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Forest Parkway over Straight Branch built?

It was built in 1988, making it 37 years old in 2025.

What condition is Forest Parkway over Straight Branch 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 March 2024.

How much traffic does Forest Parkway over Straight Branch carry?

About 500 vehicles per day (1994 count), of which roughly 7% are trucks.

How long is Forest Parkway over Straight Branch?

The structure is 30 ft (9.1 m) long with a longest span of 8 ft (2.4 m).

Who owns Forest Parkway over Straight Branch?

It is owned by the City or Municipal Highway Agency.