US Bridges

Laura Koppe RD over Ditch

PoorClosed to traffic

Harris County, Texas · 9400 Laura Koppe · Structure no. 121020B38337300

Built
1997
28 years old
Condition
Poor
inspected September 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
47 ft
3 main spans
Daily traffic
1,235
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Laura Koppe RD over Ditch is a wood or timber stringer/multi-beam or girder carrying Laura Koppe RD over Ditch in Harris County, Texas. It was built in 1997, so it is 28 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.

It carries about 1,235 vehicles a day, roughly 1% of them trucks, projected to reach 1 by 1900. The structure is 47 ft (14.3 m) long and 32 ft wide.

Location

Open in Google Maps
CarriesLaura Koppe RD
CrossesDitch
Location9400 Laura Koppe
RouteCity Street 0
CountyHarris County
StateTexas
Coordinates29.84027, -95.2535
Functional classUrban Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; extensive scour has occurred
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating0 US tons
Inventory rating0 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length47 ft (14.3 m)
Longest span16 ft (4.9 m)
Deck width32 ft (9.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,235 (2022)
Projected traffic1 by 1900
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Laura Koppe RD over Ditch built?

It was built in 1997, making it 28 years old in 2025.

What condition is Laura Koppe RD over Ditch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does Laura Koppe RD over Ditch carry?

About 1,235 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Laura Koppe RD over Ditch?

The structure is 47 ft (14.3 m) long with a longest span of 16 ft (4.9 m) and a deck 32 ft wide.

Who owns Laura Koppe RD over Ditch?

It is owned by the City or Municipal Highway Agency.