Free Bridge Data API

Access U.S. bridge condition data programmatically. No API key required. All endpoints return JSON and are free for any use.

Nearby Bridges

Find bridges near a geographic coordinate.

Endpoint	`GET /api/nearby`
Parameters	`lat` (required), `lng` (required), `radius` (miles, default 10, max 50)

Example

curl "https://bridgelookup.com/api/nearby?lat=40.7128&lng=-74.0060&radius=5"

Response

{
  "bridges": [
    {
      "ID": 12345,
      "FacilityCarried": "BROOKLYN BRIDGE",
      "FeatureCrossed": "EAST RIVER",
      "BridgeCondition": "G",
      "YearBuilt": 1883,
      "ADT": 102271,
      "Lat": 40.70604,
      "Lng": -73.99681,
      "DistanceMi": 0.8
    }
  ],
  "count": 42,
  "radius_mi": 5,
  "lat": 40.7128,
  "lng": -74.006
}

Embeddable Widget

Add bridge condition data to any website with two lines of HTML. The widget automatically looks up bridges near the given address and displays condition ratings with a link back to the full report.

Usage

<div data-bridgelookup="123 Main St, Austin TX"></div>
<script src="https://bridgelookup.com/embed.js"></script>

Preview

The widget is free for any use. It works on blogs, news sites, real estate listings, and any HTML page. Customize the address by changing the data-bridgelookup attribute.

Embed API (JSON)

If you prefer to build your own display, use the embed API endpoint directly.

Endpoint	`GET /api/embed`
Parameters	`q` (address, required)
CORS	Enabled (any origin)

Example

curl "https://bridgelookup.com/api/embed?q=Brooklyn+Bridge,+New+York,+NY"

CSV Downloads

Download bridge data by state or county as CSV files.

State export	`/api/export/{state-slug}.csv`
County export	`/api/export/{state-slug}/{county-slug}.csv`

Examples

curl -O https://bridgelookup.com/api/export/texas.csv
curl -O https://bridgelookup.com/api/export/new-york/kings-county.csv

Or browse all available downloads on the data downloads page.

Rate Limits & Attribution

There are no hard rate limits, but please be reasonable. If you use this data in a publication or application, a link to BridgeLookup.com is appreciated.

Data sourced from the National Bridge Inventory, maintained by the Federal Highway Administration.