US Bridges

SH 99 Nbfr over Ditch T 101-03-00

Good

Harris County, Texas · 0.1 MI N of IH 10 · Structure no. 121020351005037

Built
2005
20 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
7,090
2013 count
Owner
State
State Highway Agency

About this bridge

SH 99 Nbfr over Ditch T 101-03-00 is a prestressed concrete box beam or girders - multiple carrying SH 99 Nbfr over Ditch T 101-03-00 in Harris County, Texas. It was built in 2005, so it is 20 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 7,090 vehicles a day, roughly 6% of them trucks, projected to reach 9,930 by 2033. The structure is 80 ft (24.4 m) long and 49 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSH 99 Nbfr
CrossesDitch T 101-03-00
Location0.1 MI N of IH 10
RouteState Highway 99
StateTexas
Coordinates29.78628, -95.77675
Functional classUrban Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length80 ft (24.4 m)
Longest span40 ft (12.2 m)
Deck width49 ft (14.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,090 (2013)
Projected traffic9,930 by 2033
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 99 Nbfr over Ditch T 101-03-00 built?

It was built in 2005, making it 20 years old in 2025.

What condition is SH 99 Nbfr over Ditch T 101-03-00 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 October 2024.

How much traffic does SH 99 Nbfr over Ditch T 101-03-00 carry?

About 7,090 vehicles per day (2013 count), of which roughly 6% are trucks.

How long is SH 99 Nbfr over Ditch T 101-03-00?

The structure is 80 ft (24.4 m) long with a longest span of 40 ft (12.2 m) and a deck 49 ft wide.

Who owns SH 99 Nbfr over Ditch T 101-03-00?

It is owned by the State Highway Agency.