SR 99 over Big Creek
Limestone County, Alabama · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 99 over Big Creek in Limestone County, Alabama, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1947 and reconstructed in 1974, making it 78 years old at the 2025 inventory.
- It carries about 6,250 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 176 of the 325 inventoried bridges in Limestone County rated fair (54.2%); 7 (2.2%) 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 2024, on a 24-month routine inspection cycle.
- 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 → (34.85167, -87.04167)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 60 ft |
| Location | 4.9 Mi N Jct SR99 & SR127 |
| NBI structure number | 011043 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Alabama department of transportation.
Busiest bridges in Limestone County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 565 over Withers Spring Branch | 1988 | 53,280 | Fair |
| I 565 over Spring Creek | 1990 | 39,633 | Fair |
| I 565 over Piney Creek | 1990 | 39,633 | Fair |
| SR 2 over SR 3 | 1975 | 32,800 | Fair |
| SR 2 over Town Creek | 1956 | 31,750 | Fair |
| I 565 over Beaver Dam Creek | 1987 | 26,640 | Fair |
All bridges nearby: Limestone County, AL bridge conditions · every bridge in Limestone County · Alabama bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.