Silkwood over Drain
Bossier Parish, Louisiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Silkwood over Drain in Bossier Parish, Louisiana, 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 100 vehicles a day (traffic count year 2020).
- Its listed owner is the county highway agency.
- It is one of 74 of the 269 inventoried bridges in Bossier Parish rated good (27.5%); 41 (15.2%) are rated poor.
- 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 → (32.63496, -93.73416)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Concrete channel beam |
| Length | about 100 ft |
| Location | 0.98 Mi. W. of La 3 on Si |
| NBI structure number | 040800000040415 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Louisiana department of transportation.
Busiest bridges in Bossier Parish
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I0020 over Ramp J-2 | 1965 | 71,593 | Fair |
| I0020 over Traffic Street | 1966 | 71,593 | Fair |
| I0020 over Hamilton Mills Road | 1966 | 71,593 | Fair |
| I0020 over US 71 Kcsrr Ramp SW | 1966 | 71,593 | Fair |
| I0020 over La 72/OLD Minden Rd. | 1967 | 71,593 | Fair |
| I0020 over Icg RR | 1967 | 71,593 | Fair |
All bridges nearby: Bossier Parish, LA bridge conditions · every bridge in Bossier Parish · Louisiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.