US Bridges

SR1709 over Ellerbe Creek

Fair

Durham County, North Carolina · 0.2 Mi. N. of Jct. SR1671 · Structure no. 000000000630279

Built
1964
61 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
58 ft
4 main spans
Daily traffic
5,200
2015 count
Owner
State
State Highway Agency

About this bridge

SR1709 over Ellerbe Creek is a concrete continuous culvert carrying SR1709 over Ellerbe Creek in Durham County, North Carolina. It was built in 1964, so it is 61 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 fair condition with a lowest component rating of 5 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 5,200 vehicles a day, roughly 7% of them trucks, projected to reach 10,400 by 2040. The structure is 58 ft (17.6 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSR1709
CrossesEllerbe Creek
Location0.2 Mi. N. of Jct. SR1671
RouteState Highway 1709
Coordinates36.022, -78.87051
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.9 US tons
Inventory rating29 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadHS 20 + Mod
Structure length58 ft (17.6 m)
Longest span12 ft (3.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,200 (2015)
Projected traffic10,400 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

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 SR1709 over Ellerbe Creek built?

It was built in 1964, making it 61 years old in 2025.

What condition is SR1709 over Ellerbe Creek 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 November 2023.

How much traffic does SR1709 over Ellerbe Creek carry?

About 5,200 vehicles per day (2015 count), of which roughly 7% are trucks.

How long is SR1709 over Ellerbe Creek?

The structure is 58 ft (17.6 m) long with a longest span of 12 ft (3.6 m).

Who owns SR1709 over Ellerbe Creek?

It is owned by the State Highway Agency.