Mahon Road over Little Wabash River
Huntington County, Indiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mahon Road over Little Wabash River in Huntington County, Indiana, 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 1965, making it 60 years old at the 2025 inventory.
- It carries about 375 vehicles a day (traffic count year 2021).
- Its listed owner is the county highway agency.
- It is one of 106 of the 187 inventoried bridges in Huntington County rated fair (56.7%); 10 (5.3%) 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 September 2023, on a 24-month routine inspection cycle.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- 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 → (40.9381, -85.37919)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 145 ft |
| Location | 0.05 Mi SE of US 24 |
| NBI structure number | 3500070 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in Huntington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 24 over Huntington Drain | 1965 | 15,543 | Fair |
| I-69 SB over Flat Creek | 1963 | 15,423 | Good |
| I-69 NB over Flat Creek | 1963 | 15,325 | Good |
| I-69 NB over Salamonie River Road | 1963 | 15,203 | Good |
| I-69 NB over Elkenberry Ditch | 1963 | 15,000 | Good |
| I-69 NB over Wabash River Road | 1964 | 14,360 | Good |
All bridges nearby: Huntington County, IN bridge conditions · every bridge in Huntington County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.