US Bridges

SH 90 over Iron Creek Relief No 1

Fair

Madison County, Texas · 1.75 MI SW of FM 1452 · Structure no. 171540031501005

Built
1932
93 years old, rebuilt 1988
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
3,553
2020 count
Owner
State
State Highway Agency

About this bridge

SH 90 over Iron Creek Relief No 1 is a concrete culvert carrying SH 90 over Iron Creek Relief No 1 in Madison County, Texas. It was built in 1932 and reconstructed in 1988, so it is 93 years old, older 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 3,553 vehicles a day, roughly 4% of them trucks, projected to reach 5,190 by 2033. The structure is 21 ft (6.4 m) long and 44 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesSH 90
CrossesIron Creek Relief No 1
Location1.75 MI SW of FM 1452
RouteState Highway 90
CountyMadison County
StateTexas
Coordinates30.87614, -95.93843
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
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
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width44 ft (13.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,553 (2020)
Projected traffic5,190 by 2033
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed16.8 mi (27 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 Iron Creek Relief No 1 built?

It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1988.

What condition is SH 90 over Iron Creek Relief No 1 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 June 2023.

How much traffic does SH 90 over Iron Creek Relief No 1 carry?

About 3,553 vehicles per day (2020 count), of which roughly 4% are trucks.

How long is SH 90 over Iron Creek Relief No 1?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 44 ft wide.

Who owns SH 90 over Iron Creek Relief No 1?

It is owned by the State Highway Agency.