A creek or stream across your access route stops more than water. It stops trucks, equipment and crews until you have a reliable way across. A creek crossing bridge spans the channel so traffic stays out of the stream, whether the job is a construction site, a timber harvest, oil and gas access, infrastructure work, a farm lane or a private driveway.
E&H Manufacturing builds stress-laminated timber bridges in central West Virginia. The spans have been heavily used in the timber and oil and gas industries. They’re also widely used on larger farms, for housing developments and for personal home sites, and some have been installed for permanent access to parks, recreation areas and private lands. This guide covers what to work out before you call about a bridge: how long it needs to be, what it has to carry, how it protects the creek and what the site work involves.
Who needs a timber creek crossing bridge
Any project that has to cross a creek or drainage without driving through it can use a temporary or permanent timber bridge. Common situations include:
- Construction and development — site access across a creek during building, road work, or early evaluation for a housing project.
- Logging and forestry — temporary stream crossings for harvest equipment that come out when the job is done.
- Oil and gas access — crossings on lease roads, pads and rights-of-way.
- Infrastructure and public works — temporary or permanent access where a stream blocks a work area or maintenance route.
- Farms, home sites and private land — farm lanes, long driveways, parks and recreation access where a dependable crossing is needed year after year.
If you’re still deciding between a bridge, a culvert or a ford, start with our comparison of access bridges, culverts and fords for stream crossings. This guide assumes a bridge is on the table.
Temporary or permanent: sale or lease
Our stress-laminated timber bridges are offered for temporary or permanent use, for sale or lease, and they’re adequate for permanent installations. That gives two practical paths:
- Buy and keep it. A permanent bridge makes sense for a driveway, a main farm or plant lane, park access or any crossing you’ll use year after year.
- Lease it for a project. If you only need access for a construction phase, a timber harvest, a short oilfield window or a one-time equipment move, a lease can cover that period. A rental contract is available on our bridge page.
Because the bridges are built to be removed, a crossing that’s finished on one site can often be relocated to the next job instead of being abandoned. Our temporary bridge overview covers how the bridges are reused across sites and industries.
Step 1: Measure the crossing
Start with the distance from bank to bank at the spot where you want to cross. Then remember the bridge has to rest on solid ground on each side, so it needs to be longer than the open gap. Our bridges come in 30-foot and 40-foot lengths, designed for maximum spans of 20 feet and 30 feet.
When you measure:
- Pick the narrowest stable section of the creek. Look for firm banks, not where the stream is cutting into the bank or spreading out into a flat.
- Measure at the top of the bank, not at the waterline, and note how high the water gets after a hard rain.
- Take photos looking upstream, downstream, and across from each bank. They make the first conversation much faster.
If the gap is wider than a 30-foot span, call us before you plan around a single bridge.
Step 2: Decide what will cross it
The bridge has to be matched to the heaviest thing that will ever drive over it, not the vehicle you use most. That might be a loaded dump truck, a logging skidder, a water truck, a concrete mixer, a tractor with a full wagon, a lowboy bringing in equipment or a fire truck. Make the list from the heaviest loads on your site, not the average day.
Our professionally engineered, pre-stress-laminated timber bridges carry loads up to 80,000 pounds and are designed to meet American Association of State Highway Transportation Officials (AASHTO HS-20-44) specifications. Our patented Shear Key design lets each bridge work as a single, solid structure, with weight spread evenly across the whole bridge.
Make a short list of your heaviest vehicles with their gross and axle weights, then compare it with the bridge’s rating. Our guide to load ratings for temporary bridges explains how. If anything on the list is close to or above the rating, tell us up front.
Step 3: Check the width
Our bridges have a 13-foot overall width. Before you commit, compare that with the widest equipment you plan to move across. Wide implements, attachments and some trailers can be wider than the trucks that haul them. Also think about the approach. A long vehicle needs a straight, level run onto the bridge. If the road or lane comes in at a sharp angle, plan to reshape it.
Step 4: Protect the creek
A good stream crossing bridge keeps traffic out of the water. Our timber bridges span the channel with no in-stream construction, and they help keep debris out of the waterway. Our timber bridge systems help meet and exceed Best Management Practices for stream crossings by minimizing stream siltation and erosion during installation, use and removal of the bridge. They also meet the requirements of Virginia Department of Environmental Quality (DEQ) Specification 3.24.
Work in or near a stream can still need a permit, and the rules vary by state and county. Check before any work starts. Our posts on temporary bridge permitting basics and stream disturbance permits in West Virginia cover the usual questions. Your local permitting office has the final say.
Step 5: Plan the site work
Each bridge is designed to be installed with a dozer, excavator or boom truck, so many sites already have the right equipment on hand. Before the bridge arrives, plan for:
- Level, firm approaches on both banks
- Supports set back from the edge of the bank on solid ground
- Enough room for the machine to reach and set the bridge without working in the creek
- Gravel or other surfacing where the approaches meet your road, lane or driveway
Our post on site preparation for temporary bridges goes into approaches and supports in more detail.
Step 6: Look after it over the years
A bridge that stays in place for years should be looked at on a schedule. Clear debris after high water, check the approaches for washouts, and walk the deck and edges for damage. Our weekly timber bridge inspection guide gives you a simple checklist to follow.
Common questions
Should I lease or buy?
If the crossing is part of how you use the site every day, such as a driveway, a main lane or permanent park access, buying usually makes more sense. If you need access for one project or season, ask about a lease. We offer both.
Can a timber bridge stay in place permanently?
Yes. Our stress-laminated timber bridges are offered for permanent as well as temporary use and are adequate for permanent installations. Some have been installed for permanent access to parks, recreation areas and private lands.
What should I have ready before I call?
- The bank-to-bank measurement and photos of both banks
- Your heaviest and widest vehicles or equipment
- Whether you want to buy or lease, and for how long
- The site location and anything you already know about permits
Our post on how to get a detailed temporary bridge quote explains what happens next.
Get the right creek crossing bridge
E&H’s corporate officers have been with the company since day one and bring more than 100 years of combined experience. We’ll help you match a timber bridge to your span, your equipment and your site. Contact E&H Manufacturing, email info@EandHManufacturing.com, or call 304-344-9875.