421ST AVENUE over ANTELOPE CREEK
4.8N & 2E OF PIERPONT · County 037, South Dakota · Built 1935 · 2 Lanes · 10 vehicles/day
Structurally Deficient
— One or more key components rated 4 (Poor) or below
Overall
Deck
6
Satisfactory
Superstructure
5
Fair
Substructure
4
Poor
Condition Ratings
| Component | Rating | Description |
|---|---|---|
| Deck | 6 | Satisfactory |
| Superstructure | 5 | Fair |
| Substructure | 4 | Poor |
Location
45.570817, -97.795533
This bridge is in worse condition than 73.5% of bridges in County 037. The average bridge in South Dakota is 0 years old; this one is 91 years old.
Nearby Bridges
SD027 over ANTELOPE CK
Built 1970
SD027 over DRY RUN CK
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SD027 over CK
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418TH AVENUE over ANTELOPE CREEK
Built 1928
420TH AVENUE over CREEK
Built 2009
122ND STREET over CREEK
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SD027 over CK
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130TH STREET over CREEK
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12590-416TH AVENUE over CK
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416TH AVENUE over CREEK
Built 2024
Bridge Details
- Structure #
- 000000019090012
- Year Built
- 1935
- Length
- 13.7 m (44.9 ft)
- Max Span
- 13.7 m
- Width
- 5.8 m (19 ft)
- Lanes
- 2
- Daily Traffic
- 10
- Material
- Steel
- Design
- Truss - Thru
- Owner
- County Highway Agency
- Last Inspected
- N/A
- Est. Improvement
- $1,713,000
- Total Project Cost
- $1,743,000
Data from FHWA National Bridge Inventory. Bridge conditions may have changed since the last inspection. This site is not affiliated with FHWA. Do not use for route clearance purposes.