US 13 NB over Manokin River
Somerset County, Maryland · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 13 NB over Manokin River in Somerset County, Maryland, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1958 and reconstructed in 1980, making it 67 years old at the 2025 inventory.
- It carries about 22,370 vehicles a day (traffic count year 2009).
- Its listed owner is the state highway agency.
- It is one of 34 of the 46 inventoried bridges in Somerset County rated fair (73.9%); 3 (6.5%) 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 February 2023, 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 → (38.20442, -75.69885)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 85 ft |
| Location | 0.05 Mile North of Md 363 |
| NBI structure number | 100000190012011 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2023 |
| 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 Maryland department of transportation.
Busiest bridges in Somerset County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 13 over Passerdyke Creek | 1900 | 27,695 | Fair |
| US 13 SB over Manokin River | 1964 | 22,370 | Fair |
| US 13 NB over Kings Creek | 1962 | 20,870 | Fair |
| US 13 NB over Jones Creek | 1934 | 20,870 | Fair |
| US 13 NB over Norfolk Southern RR | 1957 | 16,470 | Fair |
| US 13 SB over Norfolk Southern RR | 1965 | 16,470 | Fair |
All bridges nearby: Somerset County, MD bridge conditions · every bridge in Somerset County · Maryland bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.