US Bridges

SH 99 NB over US 90A RR Crk FM 1664

Good

Fort Bend County, Texas · @ US 90A Intersection · Structure no. 120800002708535

Built
2017
8 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
2,323 ft
2 main spans
Daily traffic
19,612
2023 count
Owner
Toll Authority
Local Toll Authority

About this bridge

SH 99 NB over US 90A RR Crk FM 1664 is a steel continuous stringer/multi-beam or girder carrying SH 99 NB over US 90A RR Crk FM 1664 in Fort Bend County, Texas. It was built in 2017, so it is 8 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 19,612 vehicles a day, roughly 6% of them trucks, projected to reach 27,457 by 2042. The structure is 2,323 ft (707.9 m) long and 42 ft wide.

CarriesSH 99 NB
CrossesUS 90A RR Crk FM 1664
Location@ US 90A Intersection
StateTexas
Coordinates29.60067, -95.68377
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 inspectionDecember 2024
Inspection intervalevery 24 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

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+17 approach)
Design loadHL 93
Structure length2,323 ft (707.9 m)
Longest span221 ft (67.4 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,612 (2023)
Projected traffic27,457 by 2042
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed—
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerLocal Toll Authority
Maintained byLocal Toll Authority
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was SH 99 NB over US 90A RR Crk FM 1664 built?

It was built in 2017, making it 8 years old in 2025.

What condition is SH 99 NB over US 90A RR Crk FM 1664 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 December 2024.

How much traffic does SH 99 NB over US 90A RR Crk FM 1664 carry?

About 19,612 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SH 99 NB over US 90A RR Crk FM 1664?

The structure is 2,323 ft (707.9 m) long with a longest span of 221 ft (67.4 m) and a deck 42 ft wide.

Who owns SH 99 NB over US 90A RR Crk FM 1664?

It is owned by the Local Toll Authority.