US Bridges

SH 99 EB Entr Ramp over Natural Ground

Good

Harris County, Texas · 0.10 MI W of IH 45 · Structure no. 121020351006118

Built
2016
9 years old
Condition
Good
inspected November 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
2 main spans
Daily traffic
1,563
2024 count
Owner
State
State Highway Agency

About this bridge

SH 99 EB Entr Ramp over Natural Ground is a prestressed concrete stringer/multi-beam or girder carrying SH 99 EB Entr Ramp over Natural Ground in Harris County, Texas. It was built in 2016, so it is 9 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,563 vehicles a day, projected to reach 1,500 by 2036. The structure is 240 ft (73.2 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSH 99 EB Entr Ramp
CrossesNatural Ground
Location0.10 MI W of IH 45
CountyHarris County
StateTexas
Coordinates30.09229, -95.43725
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than 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, cast-in-place
Main spans2
Design loadHL 93
Structure length240 ft (73.2 m)
Longest span120 ft (36.6 m)
Deck width28 ft (8.5 m)
Roadway width25 ft (7.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,563 (2024)
Projected traffic1,500 by 2036
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesOther
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemNo

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 Entr Ramp over Natural Ground built?

It was built in 2016, making it 9 years old in 2025.

What condition is SH 99 EB Entr Ramp over Natural Ground in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2022.

How much traffic does SH 99 EB Entr Ramp over Natural Ground carry?

About 1,563 vehicles per day (2024 count).

How long is SH 99 EB Entr Ramp over Natural Ground?

The structure is 240 ft (73.2 m) long with a longest span of 120 ft (36.6 m) and a deck 28 ft wide.

Who owns SH 99 EB Entr Ramp over Natural Ground?

It is owned by the State Highway Agency.