I40 over Harpeth River
Cheatham County, Tennessee · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- I40 over Harpeth River in Cheatham County, Tennessee, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2016, making it 9 years old at the 2025 inventory.
- It carries about 53,557 vehicles a day (traffic count year 2021).
- Its listed owner is the state highway agency.
- It is one of 58 of the 127 inventoried bridges in Cheatham County rated good (45.7%); 4 (3.1%) 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 July 2024, 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 → (36.08775, -87.06638)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 628 ft |
| Location | 2 M E Jct SR249&I40 |
| NBI structure number | 11I00400011 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Tennessee department of transportation.
Busiest bridges in Cheatham County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I24 over 124 Rl/ Ridge Road | 1973 | 75,818 | Fair |
| I24 over I24 Ll/ Ridge Road | 1973 | 75,818 | Good |
| I40 over Harpeth River | 1960 | 53,557 | Fair |
| I40 over Harpeth River | 1960 | 53,557 | Fair |
| Fap 12 over Marrow Bone Creek | 1996 | 15,685 | Good |
| Fap 12 over Marrow Bone Creek | 1996 | 15,685 | Good |
All bridges nearby: Cheatham County, TN bridge conditions · every bridge in Cheatham County · Tennessee bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.