Structure 810306 · Guilford County, NC

Us29 Us70 Us220 over Sr4240

Carries Us29 Us70 Us220 over Sr4240, 1.23 Mi. N. Jct. I40.

Overall conditionGood

Set by its lowest-rated component: Deck and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT158 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 7/9 · sets the rating

158 ft end to end, longest span 88 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built200422 years old
Length157.8 ft48.1 m
Daily traffic64,500counted 2020
Last inspectedOctober 2023every 24 months

Location

StateNorth Carolina
CountyGuilford
Location1.23 Mi. N. Jct. I40
CarriesUs29 Us70 Us220
CrossesSr4240
Coordinates36.06349, -79.76726

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length157.8 ft (48.1 m)
Max Span87.9 ft (26.8 m)
Deck Width105.3 ft (32.1 m)
Deck Area1544.0 sq m
Main Spans3
Year Built2004

Traffic

Avg Daily Traffic64,500 (2020)
Truck Traffic12%
Lanes On Bridge6
Lanes Under Bridge4

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000810306

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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