SR91 Tpk NS 118.45 over Drainage Canal
Martin County, Florida · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR91 Tpk NS 118.45 over Drainage Canal in Martin County, Florida, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1957 and reconstructed in 1990, making it 68 years old at the 2025 inventory.
- It carries about 52,700 vehicles a day (traffic count year 2022).
- It is one of 94 of the 129 inventoried bridges in Martin County rated good (72.9%); 1 (0.8%) 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 → (26.96478, -80.17312)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 20 ft |
| Location | 0.67 Mi N of Plm Bch Co |
| NBI structure number | 890072 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Martin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-95 (SR-9) over Drainage Ditch | 1987 | 111,500 | Good |
| Sr-9(i-95) over Drainage Ditch | 1987 | 103,500 | Good |
| I-95 (SR-9) over Hanson Grant Outlet | 1987 | 74,500 | Fair |
| SR 91 Tpk 137.25 over Drainage Ditch | 1957 | 59,900 | Good |
| SR91 N/S Tpk 138.1 over County Line Canal C-23 | 1957 | 59,900 | Fair |
| SR91 N/S Tpk 135.6 over Bessey Creek | 1957 | 59,900 | Fair |
All bridges nearby: Martin County, FL bridge conditions · every bridge in Martin County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.