6TH St & Grant St over Marsh Run
Indiana County, Pennsylvania · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 6TH St & Grant St over Marsh Run in Indiana County, Pennsylvania, 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 1961, making it 64 years old at the 2025 inventory.
- It carries about 780 vehicles a day (traffic count year 2024).
- Its listed owner is a city or municipal highway agency.
- It is one of 154 of the 301 inventoried bridges in Indiana County rated fair (51.2%); 54 (17.9%) 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 May 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 → (40.61581, -79.15113)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 42 ft |
| Location | Int of S 6TH & Grant St |
| NBI structure number | 000000000019533 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Indiana County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR0022 Eb&wb over Lear Rd | 1952 | 29,096 | Fair |
| SR0022 Eb&wb over Norfolk Southern RR | 1953 | 29,096 | Fair |
| SR0022 Eb&wb over SR0119 Nb&sb | 2003 | 21,499 | Good |
| SR0022 Eb&wb over Conemaugh River | 1951 | 20,532 | Fair |
| SR 0022 Eb&wb over SR 0217 & NS RR | 1951 | 20,532 | Fair |
| SR0286 over SR0422 Eb&wb | 1993 | 17,343 | Fair |
All bridges nearby: Indiana County, PA bridge conditions · every bridge in Indiana County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.