US Bridges

SH 90 over Sulphur Creek Relief

Good

Grimes County, Texas · 3.65 MI N of SH 30 · Structure no. 170940031502020

Built
1927
98 years old, rebuilt 1960
Condition
Good
inspected May 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
3,776
2020 count
Owner
State
State Highway Agency

About this bridge

SH 90 over Sulphur Creek Relief is a concrete culvert carrying SH 90 over Sulphur Creek Relief in Grimes County, Texas. It was built in 1927 and reconstructed in 1960, so it is 98 years old, older 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 3,776 vehicles a day, roughly 5% of them trucks, projected to reach 4,430 by 2033. The structure is 32 ft (9.8 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesSH 90
CrossesSulphur Creek Relief
Location3.65 MI N of SH 30
RouteState Highway 90
CountyGrimes County
StateTexas
Coordinates30.63618, -95.9554
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width44 ft (13.5 m)
Roadway width43 ft (13 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,776 (2020)
Projected traffic4,430 by 2033
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SH 90 over Sulphur Creek Relief built?

It was built in 1927, making it 98 years old in 2025. It was reconstructed in 1960.

What condition is SH 90 over Sulphur Creek Relief 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 May 2023.

How much traffic does SH 90 over Sulphur Creek Relief carry?

About 3,776 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is SH 90 over Sulphur Creek Relief?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 44 ft wide.

Who owns SH 90 over Sulphur Creek Relief?

It is owned by the State Highway Agency.