US Bridges

SH 99 EB over Max Conrad Drive

Fair

Harris County, Texas · 0.75 MI SW of FM 2920 · Structure no. 121020351006179

Built
2015
10 years old
Condition
Fair
inspected October 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
4,000
2015 count
Owner
State
State Highway Agency

About this bridge

SH 99 EB over Max Conrad Drive is a prestressed concrete stringer/multi-beam or girder carrying SH 99 EB over Max Conrad Drive in Harris County, Texas. It was built in 2015, so it is 10 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,000 vehicles a day, roughly 2% of them trucks, projected to reach 6,000 by 2035. The structure is 70 ft (21.3 m) long and 40 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 99 EB
CrossesMax Conrad Drive
Location0.75 MI SW of FM 2920
CountyHarris County
StateTexas
Coordinates30.06658, -95.56453
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2015)
Projected traffic6,000 by 2035
Trucks2%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 99 EB over Max Conrad Drive built?

It was built in 2015, making it 10 years old in 2025.

What condition is SH 99 EB over Max Conrad Drive in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2022.

How much traffic does SH 99 EB over Max Conrad Drive carry?

About 4,000 vehicles per day (2015 count), of which roughly 2% are trucks.

How long is SH 99 EB over Max Conrad Drive?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 40 ft wide.

Who owns SH 99 EB over Max Conrad Drive?

It is owned by the State Highway Agency.