SR1800 over US70

Durham County, North Carolina · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

SR1800 over US70 in Durham County, North Carolina, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2002, making it 23 years old at the 2025 inventory.
It carries about 17,000 vehicles a day (traffic count year 2021).
Its listed owner is the state highway agency.
It is one of 113 of the 313 inventoried bridges in Durham County rated good (36.1%); 10 (3.2%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Continuous steel stringer or multi-beam girder
Length	about 259 ft
Location	0.6 Mi. N. Jct. SR1670
NBI structure number	000000000630101
Condition class	Good

Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.

Bridge	Built	Vehicles/day	Condition
I40 over SR1973	1995	147,000	Fair
I40 Wbl over NC55	1985	107,000	Fair
I85 & US15 over Ellerbee Creek	1960	104,000	Fair
I40 over Northeast Creek	1985	101,000	Fair
I85N over NC55	2005	80,000	Good
I85 US15 US70 over SR1671	2001	80,000	Good