320th ST over Mud Creek
Poor Condition126 years old11 vehicles/day
Location
| State | Iowa |
| County | Plymouth |
| Location | 090443001 |
| Carries | 320th ST |
| Crosses | Mud Creek |
| Coordinates | 42.59030, -96.09189 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 3 (Serious) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 44.9 ft (13.7 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 18.4 ft (5.6 m) |
| Deck Area | 76.7 sq m |
| Main Spans | 1 |
| Year Built | 1900 (reconstructed 1973) |
Traffic
| Avg Daily Traffic | 11 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 000000000271170 |