US Bridges

SR1632 over Ellerbee Creek

Fair

Durham County, North Carolina · 0.5 MI.S.SR1636 · Structure no. 000000000630031

Built
1978
47 years old
Condition
Fair
inspected August 2023
Type
Slab
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
11,500
2021 count
Owner
State
State Highway Agency

About this bridge

SR1632 over Ellerbee Creek is a prestressed concrete slab carrying SR1632 over Ellerbee Creek in Durham County, North Carolina. It was built in 1978, so it is 47 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 11,500 vehicles a day, roughly 7% of them trucks, projected to reach 23,000 by 2040. The structure is 120 ft (36.5 m) long and 30 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

No coordinates are recorded for this structure.

CarriesSR1632
CrossesEllerbee Creek
Location0.5 MI.S.SR1636
RouteState Highway 1632
CountyDurham County
StateNorth Carolina
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 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
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.9 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length120 ft (36.5 m)
Longest span39 ft (11.8 m)
Deck width30 ft (9.2 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,500 (2021)
Projected traffic23,000 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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR1632 over Ellerbee Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is SR1632 over Ellerbee 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 August 2023.

How much traffic does SR1632 over Ellerbee Creek carry?

About 11,500 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is SR1632 over Ellerbee Creek?

The structure is 120 ft (36.5 m) long with a longest span of 39 ft (11.8 m) and a deck 30 ft wide.

Who owns SR1632 over Ellerbee Creek?

It is owned by the State Highway Agency.