I-40 Rampto I-77SB over I-40
Iredell County, North Carolina · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I-40 Rampto I-77SB over I-40 in Iredell County, North Carolina, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2023, making it 2 years old at the 2025 inventory.
- It carries about 28,560 vehicles a day (traffic count year 2018).
- Its listed owner is the state highway agency.
- It is one of 97 of the 333 inventoried bridges in Iredell County rated good (29.1%); 48 (14.4%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated June 2023, on a 24-month routine inspection cycle.
- 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.
View this bridge on a map → (35.809, -80.863)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 2,288 ft |
| Location | 0.79 Mi. N Mocksville Rd |
| NBI structure number | 000000000970599 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the North Carolina department of transportation.
Busiest bridges in Iredell County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I77 over Lake Norman | 2018 | 63,500 | Good |
| I77 over Ut to Fourth Creek | 1957 | 58,000 | Fair |
| I-77 over Duck Creek | 1970 | 56,500 | Fair |
| I77 over Cornelius Creek | 1966 | 54,000 | Fair |
| I-40 over Ut to Fourth Creek | 2022 | 41,500 | Good |
| I77 over Fifth Creek | 1973 | 38,500 | Fair |
All bridges nearby: Iredell County, NC bridge conditions · every bridge in Iredell County · North Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.