US Bridges

Bi 40D EB over IH 40

Poor

Carson County, Texas · 6.9 MI E of US 287 · Structure no. 040330027502051

Built
1966
59 years old
Condition
Poor
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
423 ft
4 main spans
Daily traffic
160
2010 count
Owner
State
State Highway Agency

About this bridge

Bi 40D EB over IH 40 is a steel continuous stringer/multi-beam or girder carrying Bi 40D EB over IH 40 in Carson County, Texas. It was built in 1966, so it is 59 years old, older than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 160 vehicles a day, roughly 19% of them trucks, projected to reach 220 by 2027. The structure is 423 ft (128.9 m) long and 31 ft wide.

Location

Open in Google Maps
CarriesBi 40D EB
CrossesIH 40
Location6.9 MI E of US 287
RouteState Highway 40
CountyCarson County
StateTexas
Coordinates35.22047, -101.5808
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length423 ft (128.9 m)
Longest span115 ft (35.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2010)
Projected traffic220 by 2027
Trucks19%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bi 40D EB over IH 40 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Bi 40D EB over IH 40 in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Bi 40D EB over IH 40 carry?

About 160 vehicles per day (2010 count), of which roughly 19% are trucks.

How long is Bi 40D EB over IH 40?

The structure is 423 ft (128.9 m) long with a longest span of 115 ft (35.1 m) and a deck 31 ft wide.

Who owns Bi 40D EB over IH 40?

It is owned by the State Highway Agency.