FM 121 over Conner Creek
Grayson County, Texas · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- FM 121 over Conner Creek in Grayson County, Texas, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1954, making it 71 years old at the 2025 inventory.
- It carries about 1,278 vehicles a day (traffic count year 2020).
- Its listed owner is the state highway agency.
- It is one of 298 of the 508 inventoried bridges in Grayson County rated fair (58.7%); 9 (1.8%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (33.4393, -96.41361)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 5 | Fair condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 22 ft |
| Location | 0.6 Mi W of SH 160 |
| NBI structure number | 010920072902017 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Texas department of transportation.
Busiest bridges in Grayson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 75 over N Travis St | 2023 | 72,400 | Good |
| US 75 over SH 91 | 2023 | 72,400 | Good |
| US 75 over Shepherd Dr | 2005 | 50,688 | Fair |
| US 75 over FM 121 | 1965 | 41,907 | Fair |
| US 75 over Draw | 1965 | 41,907 | Fair |
| US 75 over W Farmington/blythe Rd | 1965 | 40,131 | Fair |
All bridges nearby: Grayson County, TX bridge conditions · every bridge in Grayson County · Texas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.